INSERT INTO `questions` (`id`, `category_id`, `question`, `question_type`, `answer_type`, `subjective_ans`, `marks`, `time`, `added_by`, `status`, `current_url`, `created_at`, `updated_at`) VALUES
(251889, '85,80,239,256', '<p>Among&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>C</mi><mi>a</mi><msub><mi>H</mi><mn>2</mn></msub><mo>,</mo><mo>&#160;</mo><mi>B</mi><mi>e</mi><msub><mi>F</mi><mn>2</mn></msub><mo>,</mo><mo>&#160;</mo><mi>B</mi><mi>a</mi><msub><mi>H</mi><mn>2</mn></msub></math>&nbsp;the order of ionic character is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-28 08:35:48', NULL),
(251890, '85,80,239,256', '<p>Magnesium reacts with an element (X) to form an ionic compound. If the ground state electronic configuration of (X) is&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mn>1</mn><msup><mi>s</mi><mn>2</mn></msup><mn>2</mn><msup><mi>s</mi><mn>2</mn></msup><mn>2</mn><msup><mi>p</mi><mn>3</mn></msup></math>, the simplest formula for this compound is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-28 08:38:04', NULL),
(251891, '85,80,239,256', '<p>Consider the following species:</p>\r\n\r\n<p><math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>C</mi><msup><mi>N</mi><mo>+</mo></msup><mo>,</mo><mo>&#160;</mo><mi>C</mi><msup><mi>N</mi><mo>-</mo></msup><mo>,</mo><mo>&#160;</mo><mi>N</mi><mi>O</mi><mo>&#160;</mo><mi>a</mi><mi>n</mi><mi>d</mi><mo>&#160;</mo><mi>C</mi><mi>N</mi></math></p>\r\n\r\n<p>Which one of these will have the highest bond order?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-28 08:39:12', NULL),
(251892, '85,80,239,256', '<p>In the structure of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>C</mi><mi>I</mi><msub><mi>F</mi><mn>3</mn></msub></math>, the number of lone pairs of electrons on central atom &#39;CI&#39; is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-28 08:39:58', NULL),
(251893, '85,80,239,256', '<p>The correct order of atomic radii in group 13 elements is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-28 08:41:09', NULL),
(251894, '85,80,239,256', '<p>For the second period elements the correct increasing order of first ionization enthalpy is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-28 08:43:11', NULL),
(251895, '85,80,239,256', '<p>Which of the following diatomic molecular species has only&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi mathvariant=\"normal\">&#960;</mi></math>&nbsp;bonds according to molecular orbital theory?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-28 08:44:18', NULL),
(251896, '85,80,239,256', '<p>Which of the following is incorrect statement?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-28 08:46:03', NULL),
(251897, '85,80,239,256', '<p>The number of sigma&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mfenced><mi>&#963;</mi></mfenced><mo>&#160;</mo><mi>a</mi><mi>n</mi><mi>d</mi><mo>&#160;</mo><mi>p</mi><mi>i</mi><mo>&#160;</mo><mo>(</mo><mi>&#960;</mi><mo>)</mo></math>&nbsp;bonds in pent-2-en-4-yne is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-28 08:48:07', NULL),
(251898, '85,80,239,256', '<p>Identify the incorrect statement related to&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>P</mi><mi>C</mi><msub><mi>l</mi><mn>5</mn></msub></math>&nbsp;from the following:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-28 08:49:44', NULL),
(251899, '85,80,239,256', '<p>Which of the following is paramgnetic?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-28 08:50:47', NULL),
(251900, '85,80,239,256', '<p>The number of hydrogen bonded water molecule (s) associated with&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>C</mi><mi>u</mi><mi>S</mi><msub><mi>O</mi><mn>4</mn></msub><mo>&#160;</mo><mo>.</mo><mo>&#160;</mo><mn>5</mn><msub><mi>H</mi><mn>2</mn></msub><mi>O</mi></math>&nbsp;is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-28 08:51:41', NULL),
(251901, '85,80,239,256', '<p>Amongst the following elements the configuration having the highest ionization energy is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-28 09:31:01', NULL),
(251902, '85,80,239,256', '<p>The enolic form of acetone contains:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-28 09:32:50', NULL),
(251903, '85,80,239,256', '<p>The hybridization of carbon atoms in C - C single bond of HC&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\" class=\"wrs_chemistry\"><mo>&#8801;</mo></math>C - CH&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\" class=\"wrs_chemistry\"><mo>=</mo><msub><mi>CH</mi><mn>2</mn></msub></math>&nbsp;is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-28 09:35:10', NULL),
(251904, '85,80,239,256', '<p>The molecules having dipole moment are:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-28 09:39:40', NULL),
(251905, '85,80,239,256', '<p>1, 3-butadiene has:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-28 09:40:48', NULL),
(251906, '85,80,239,256', '<p>Which has triangular planar shape?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-28 09:41:37', NULL),
(251907, '85,80,239,256', '<p><math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>C</mi><msub><mi>O</mi><mn>2</mn></msub></math>&nbsp;is isostructural with:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-28 09:42:50', NULL),
(251908, '85,80,239,256', '<p>The decreasing order of the second ionized energy of K, Ca and Ba is :</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-28 09:44:00', NULL),
(251909, '85,80,239,256', '<p>Which has zero dipole moment?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-28 09:44:44', NULL),
(251910, '85,80,239,256', '<p>The following compounds have been arranged in order of their increasing themal stabilities. Identify the correct order:</p>\r\n\r\n<p><math xmlns=\"http://www.w3.org/1998/Math/MathML\" class=\"wrs_chemistry\"><msub><mi mathvariant=\"normal\">K</mi><mn>2</mn></msub><msub><mi>CO</mi><mn>3</mn></msub><mo>(</mo><mi mathvariant=\"normal\">I</mi><mo>)</mo><mo>&#160;</mo><mo>&#160;</mo><mo>&#160;</mo><mo>&#160;</mo><mo>&#160;</mo><mo>&#160;</mo><mo>&#160;</mo><mo>&#160;</mo><mo>&#160;</mo><mo>&#160;</mo><mo>&#160;</mo><mo>&#160;</mo><mo>&#160;</mo><mo>&#160;</mo><mo>&#160;</mo><msub><mi>MgCO</mi><mn>3</mn></msub><mo>(</mo><mi>II</mi><mo>)</mo><mspace linebreak=\"newline\"/><msub><mi>CaCO</mi><mn>3</mn></msub><mo>(</mo><mi>III</mi><mo>)</mo><mo>&#160;</mo><mo>&#160;</mo><mo>&#160;</mo><mo>&#160;</mo><mo>&#160;</mo><mo>&#160;</mo><mo>&#160;</mo><mo>&#160;</mo><mo>&#160;</mo><mo>&#160;</mo><mo>&#160;</mo><mo>&#160;</mo><mo>&#160;</mo><msub><mi>BeCO</mi><mn>3</mn></msub><mo>(</mo><mi>IV</mi><mo>)</mo></math></p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-28 09:46:47', NULL),
(251911, '85,80,239,256', '<p>Arrange the following compound in order of increasing dipole moment:</p>\r\n\r\n<p>Toluence (I)&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; m-dichlorobenzene (II)</p>\r\n\r\n<p>o-dichlorobenze (III)&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;p-dichlrobenzene (IV</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-28 09:48:23', NULL),
(251912, '85,80,239,256', '<p>KF combines with HF to form&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>K</mi><mi>H</mi><msub><mi>F</mi><mn>2</mn></msub></math>. The compound contains the species:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-28 09:49:47', NULL),
(251913, '85,80,239,256', '<p>The number and type of bonds between two carbon atoms in&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>C</mi><mi>a</mi><msub><mi>C</mi><mn>2</mn></msub></math>&nbsp;are:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-28 10:45:35', NULL),
(251914, '85,80,239,256', '<p>The critical temperature of water is higher than that of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>O</mi><mn>2</mn></msub></math>&nbsp;because&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>H</mi><mn>2</mn></msub><mi>O</mi></math>&nbsp;molecule has:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-28 10:46:41', NULL),
(251915, '85,80,239,256', '<p>The incorrect statement among the following is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-28 10:48:27', NULL),
(251916, '85,80,239,256', '<p>Among&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\" class=\"wrs_chemistry\"><msubsup><mi>KO</mi><mn>2</mn><mrow/></msubsup><mo>,</mo><mo>&#160;</mo><msubsup><mi>AlO</mi><mn>2</mn><mo>-</mo></msubsup><mo>,</mo><mo>&#160;</mo><msub><mi>BaO</mi><mn>2</mn></msub><mo>&#160;</mo><mi>and</mi><mo>&#160;</mo><msubsup><mi>NO</mi><mn>2</mn><mo>+</mo></msubsup></math>&nbsp;unpaired electron is present in:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-28 10:49:53', NULL),
(251917, '85,80,239,256', '<p>Among the following compounds the one that is polar and has central atom with&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>s</mi><msup><mi>p</mi><mn>2</mn></msup></math>&nbsp;-hybridisation is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-28 10:51:01', NULL),
(251918, '85,80,239,256', '<p>Which has&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>s</mi><msup><mi>p</mi><mn>2</mn></msup></math>-hybridization?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-28 10:52:14', NULL),
(251919, '85,80,239,256', '<p>Which contains both polar and non-polar covalent bonds?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-28 10:53:12', NULL),
(251920, '85,80,239,256', '<p>The correct order of radii is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-28 10:54:09', NULL),
(251921, '85,80,239,256', '<p>Molecular shape of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>S</mi><msub><mi>F</mi><mn>4</mn></msub><mo>,</mo><mo>&#160;</mo><mi>C</mi><msub><mi>F</mi><mn>4</mn></msub><mo>&#160;</mo><mi>a</mi><mi>n</mi><mi>d</mi><mo>&#160;</mo><mi>X</mi><mi>e</mi><msub><mi>F</mi><mn>4</mn></msub></math>&nbsp;are:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-28 10:55:53', NULL),
(251922, '85,80,239,256', '<p>Amongst&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>H</mi><mn>2</mn></msub><mi>O</mi><mo>,</mo><mo>&#160;</mo><msub><mi>H</mi><mn>2</mn></msub><mi>S</mi><mo>,</mo><mo>&#160;</mo><msub><mi>H</mi><mn>2</mn></msub><mi>S</mi><mi>e</mi><mo>&#160;</mo><mi>a</mi><mi>n</mi><mi>d</mi><mo>&#160;</mo><msub><mi>H</mi><mn>2</mn></msub><mi>T</mi><mi>e</mi></math>, the one with highest boiling point is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-28 10:58:15', NULL),
(251923, '85,80,239,256', '<p>The common feature among the species&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>C</mi><msup><mi>N</mi><mo>-</mo></msup><mo>,</mo><mo>&#160;</mo><mi>C</mi><mi>O</mi><mo>&#160;</mo><mi>a</mi><mi>n</mi><mi>d</mi><mo>&#160;</mo><mi>N</mi><msup><mi>O</mi><mo>+</mo></msup></math>&nbsp;are :</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-28 11:00:04', NULL),
(251924, '85,80,239,256', '<p>The set representing the correct order of first ionisation potential is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-28 11:01:01', NULL),
(251925, '85,80,239,256', '<p>The correct order of hybridization of the central atom in the following species&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>N</mi><msub><mi>H</mi><mn>3</mn></msub><mo>,</mo><mo>&#160;</mo><msup><mfenced open=\"[\" close=\"]\"><mrow><mi>P</mi><mi>t</mi><mi>C</mi><msub><mi>l</mi><mn>4</mn></msub></mrow></mfenced><mrow><mn>2</mn><mo>-</mo></mrow></msup><mo>,</mo><mo>&#160;</mo><mi>P</mi><mi>C</mi><msub><mi>l</mi><mn>5</mn></msub><mo>&#160;</mo><mi>a</mi><mi>n</mi><mi>d</mi><mo>&#160;</mo><mi>B</mi><mi>C</mi><msub><mi>l</mi><mn>3</mn></msub></math>&nbsp;is</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-28 11:05:13', NULL),
(251926, '85,80,239,256', '<p>Specify the coordination geometry around and hybridization of N and B atoms in a 1 : 1 complex of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>B</mi><msub><mi>F</mi><mn>3</mn></msub></math>&nbsp;and&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>N</mi><msub><mi>H</mi><mn>3</mn></msub></math>:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-28 11:09:48', NULL),
(251927, '85,80,239,256', '<p>Identify the correct order of solubility of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>N</mi><msub><mi>a</mi><mn>2</mn></msub><mi>S</mi><mo>,</mo><mo>&#160;</mo><mi>C</mi><mi>u</mi><mi>S</mi><mo>&#160;</mo><mi>a</mi><mi>n</mi><mi>d</mi><mo>&#160;</mo><mi>Z</mi><mi>n</mi><mi>S</mi></math>&nbsp;in aqueous medium:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-28 11:12:08', NULL),
(251928, '85,80,239,256', '<p>Identify the least stable ion amongst the following:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-28 11:12:53', NULL),
(251929, '85,80,239,256', '<p>Which of the following molecular species has unpaired electron (s) ?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-28 11:13:57', NULL),
(251930, '85,80,239,256', '<p>The nodal plane in the&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi mathvariant=\"normal\">&#960;</mi></math>-bond of ethene is located in:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-28 11:15:23', NULL),
(251931, '85,80,239,350', '<p>According to modern periodic law, the chemical properties of elements are the periodic functions of their</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-31 16:02:57', NULL),
(251932, '85,80,239,350', '<p>Newlands&#39; law of octave applies to which of the following sets of elements?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-31 16:03:59', NULL),
(251933, '85,80,239,350', '<p>The element whose electronic configuration is&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mn>1</mn><msup><mi>s</mi><mn>2</mn></msup><mo>,</mo><mo>&#160;</mo><mn>2</mn><msup><mi>s</mi><mn>2</mn></msup><mo>,</mo><mo>&#160;</mo><mn>2</mn><msup><mi>p</mi><mn>6</mn></msup><mo>,</mo><mo>&#160;</mo><mn>3</mn><msup><mi>s</mi><mn>2</mn></msup></math>&nbsp;is a/an</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-31 16:04:52', NULL),
(251934, '85,80,239,350', '<p>The number of periods and groups in the long form of periodic table are</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-31 16:05:31', NULL),
(251935, '85,80,239,350', '<p>The elements of group 1, 2, 13, 14, 15, 16, 17, 18 are collectively called</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-31 16:06:23', NULL),
(251936, '85,80,239,350', '<p>The statement that is false regarding the long form of the periodic table is</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-31 16:08:39', NULL),
(251937, '85,80,239,350', '<p>In the periodic table, going down in the group 17</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-31 16:09:31', NULL),
(251938, '85,80,239,350', '<p>In the long form of periodic table of all the non-metals are placed under</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-31 16:10:09', NULL),
(251939, '85,80,239,350', '<p>Alkali metals in each period have</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-31 16:10:44', NULL),
(251940, '85,80,239,350', '<p>In the modern periodc table, the period indicates the value of&nbsp;</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-31 16:12:05', NULL),
(251941, '85,80,239,350', '<p>Which of the following does not reflect periodicity of elements?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-31 16:12:50', NULL),
(251942, '85,80,239,350', '<p>The 3rd period of the periodic table contains</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-31 16:13:23', NULL),
(251943, '85,80,239,350', '<p>Which of the following sets contains pair of elements that do not belong to same group but show chemical resemblance?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-31 16:14:11', NULL),
(251944, '85,80,239,350', '<p>Which of the following belongs to the category of transition metal?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-31 16:14:45', NULL),
(251945, '85,80,239,350', '<p>Without looking at the periodic table, select the elements belonging to same group from the following list.</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-31 16:16:17', NULL),
(251946, '85,80,239,350', '<p>The elements of same group of the periodic table have</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-31 16:17:05', NULL),
(251947, '85,80,239,350', '<p>The elements which are characterised by the outer shell configuration&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>n</mi><msup><mi>s</mi><mn>1</mn></msup><mo>&#160;</mo><mi>t</mi><mi>o</mi><mo>&#160;</mo><mi>n</mi><msup><mi>s</mi><mn>2</mn></msup><mo>&#160;</mo><mi>n</mi><msup><mi>p</mi><mn>6</mn></msup></math>&nbsp;are collectively called</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-31 16:18:31', NULL),
(251948, '85,80,239,350', '<p>An element with atomic number 20 is placed in which period of the periodic table?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-31 16:25:09', NULL),
(251949, '85,80,239,350', '<p>The statement that is not correct for periodic classification of elements is</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-31 16:28:28', NULL),
(251950, '85,80,239,350', '<p>In the modern periodic table, elements are arranged in</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-31 16:29:21', NULL),
(251951, '85,80,239,350', '<p>The heaviest element among the following is</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-31 16:29:47', NULL),
(251952, '85,80,239,350', '<p>The screening effect of d-electron is</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-31 16:30:26', NULL),
(251953, '85,80,239,350', '<p>Which of the following statements is wrong?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-31 16:33:56', NULL),
(251954, '85,80,239,350', '<p>Which of the following statements is wrong?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-31 16:35:35', NULL),
(251955, '85,80,239,350', '<p>Which of the following graphs represents Moseley&#39;s experiment.</p>\r\n\r\n<p>(v = frequency of X-rays)</p>\r\n\r\n<p><img alt=\"\" src=\"https://school.achievam.com/upload/questionbank/question/que_1756658292.PNG\" style=\"height:471px; width:188px\" /></p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-31 16:38:51', NULL),
(251956, '85,80,239,350', '<p>Which of the following graphs is correct for elements with outer electronic configuration: (n -1)<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msup><mi>d</mi><mi>x</mi></msup><mo>&#160;</mo><mi>n</mi><msup><mi>s</mi><mrow><mn>1</mn><mo>&#160;</mo><mi>o</mi><mi>r</mi><mo>&#160;</mo><mn>2</mn></mrow></msup></math></p>\r\n\r\n<p>Z = atomic number</p>\r\n\r\n<p>m = magnetic moment</p>\r\n\r\n<p><img alt=\"\" src=\"https://school.achievam.com/upload/questionbank/question/que_1756658504.PNG\" style=\"height:256px; width:343px\" /></p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-31 16:42:08', NULL),
(251957, '85,80,239,350', '<p>Select correct statement</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-31 16:45:02', NULL),
(251958, '85,80,239,350', '<p>Ionisation potential of Li and K are 5.4 and 4.3 eV respectively. Ionisation potential of Na will be</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-08-31 16:46:30', NULL),
(251959, '85,80,239,350', '<p>Which of the following has the largest ionic radius?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-01 01:46:43', NULL),
(251960, '85,80,239,350', '<p>Which of the following is the smallest in size?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-01 01:47:50', NULL),
(251961, '85,80,239,350', '<p>Which of the following represent increasing order of size of 4th period element?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-01 01:48:41', NULL),
(251962, '85,80,239,350', '<p>Which of the following van der Waals radii is the largest?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-01 01:49:16', NULL),
(251963, '85,80,239,350', '<p>The correct order of the size of C, N, P and S is</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-01 01:50:21', NULL),
(251964, '85,80,239,350', '<p>The correct order of the size of Be, C, F and Ne is</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-01 01:52:28', NULL),
(251965, '85,80,239,350', '<p>The correct order of increasing radii are</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-01 01:54:09', NULL),
(251966, '85,80,239,350', '<p>The correct arrangement of decreasing order of atomic radius among Na, K, Mg and Rb is</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-01 01:55:25', NULL),
(251967, '85,80,239,350', '<p>Which of the following pairs of elements have almost similar atomic radii?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-01 01:56:10', NULL),
(251968, '85,80,239,350', '<p>The radius of isoelectronic species</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-01 01:57:34', NULL),
(251969, '85,80,239,350', '<p>Atomic radii of fluorine and neon&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mfenced><mover><mi>A</mi><mo>&#183;</mo></mover></mfenced></math>&nbsp;respectively are given as</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-01 01:59:09', NULL),
(251970, '85,80,239,350', '<p>Anything that influences the valence electrons will affect the chemistry of the element. Which one of the following factors does not affect the valence shell?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-01 02:00:37', NULL),
(251971, '85,80,239,350', '<p>The size of isoelctronic species&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msup><mi>F</mi><mi>&#920;</mi></msup><mo>,</mo><mo>&#160;</mo><mi>N</mi><mi>e</mi><mo>&#160;</mo><mi>a</mi><mi>n</mi><mi>d</mi><mo>&#160;</mo><mi>N</mi><msup><mi>a</mi><mo>&#8853;</mo></msup></math>&nbsp;is affected by</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-01 02:02:23', NULL),
(251972, '85,80,239,350', '<p>The size of isoelctronic species&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msup><mi>F</mi><mi>&#920;</mi></msup></math>, Ne and&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>N</mi><msup><mi>a</mi><mo>&#8853;</mo></msup></math>&nbsp;is affected by</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-01 02:05:18', NULL),
(251973, '85,80,239,350', '<p>Ionic radii of&nbsp;</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-01 02:07:50', NULL),
(251974, '85,80,239,350', '<p>Which of the following triads have approximatley equal size?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-01 02:10:36', NULL),
(251975, '85,80,239,350', '<p>Which of the following statements is the most correct? Effective nuclear charge of atom depends on</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-01 02:11:29', NULL),
(251976, '85,80,239,350', '<p>The shielding effect of d-electrons is</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-01 02:12:17', NULL),
(251977, '85,80,239,350', '<p>The chemistry of lithium is very similar to that of magnesium even though they are placed in different groups. Its reason is</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-01 02:13:52', NULL),
(251978, '85,80,239,350', '<p>In a given energy level, the order of penetration effect of different orbitals is</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-01 02:14:52', NULL),
(251979, '85,80,239,350', '<p>Which one of the following groups of atoms or ions is not isoelctronic?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-01 02:17:33', NULL),
(251980, '85,80,239,350', '<p>The correct order of relative stability of half filled and completely filled sub-shell is</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-01 02:19:57', NULL),
(251981, '85,80,239,350', '<p>From the group state electronic configurations of the elements given below, pick up the one with the highest value of second ionisation energies.</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-01 02:21:51', NULL),
(251982, '85,80,239,350', '<p>Which of the following processes refers to&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>I</mi><msub><mi>E</mi><mn>2</mn></msub></math>&nbsp;?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-01 02:23:48', NULL),
(251983, '85,80,239,350', '<p>Which of the following statements concerning ionisation energy is not correct?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-01 02:26:30', NULL),
(251984, '85,80,239,350', '<p>The graph of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\" class=\"wrs_chemistry\"><msub><mi>IE</mi><mn>1</mn></msub><mo>&#160;</mo><mi>or</mi><mo>&#160;</mo><msub><mo>&#8710;</mo><mi mathvariant=\"normal\">i</mi></msub><msubsup><mi mathvariant=\"normal\">H</mi><mn>1</mn><mi mathvariant=\"normal\">&#920;</mi></msubsup></math>&nbsp;versus atomic number (Z) is given below:</p>\r\n\r\n<p><img alt=\"\" src=\"https://school.achievam.com/upload/questionbank/question/que_1756693703.PNG\" style=\"height:150px; width:257px\" /></p>\r\n\r\n<p>Which of the following statements is correct?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-01 02:30:42', NULL),
(251985, '85,80,239,350', '<p>Which of the following isoelectronic ions have the lowest enthalpy?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-01 02:33:13', NULL),
(251986, '85,80,239,350', '<p>For any given element, the second ionisation potential will be - the first ionisation potential</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-01 02:34:17', NULL),
(251987, '85,80,239,350', '<p>Which of the following processes requires the largest amount of energy?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-01 02:36:35', NULL),
(251988, '85,80,239,350', '<p>Arrange S, P and As in order of increasing ionisation energy</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-01 02:37:34', NULL),
(251989, '85,80,239,350', '<p>The five successive ionisation energies of an element are 800, 2427, 3658, 25024 and 32824 kJ&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>m</mi><mi>o</mi><msup><mi>l</mi><mrow><mo>-</mo><mn>1</mn></mrow></msup></math>&nbsp;respectively. The number of valence electron is</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-01 02:40:25', NULL),
(251990, '85,80,239,350', '<p>Which of the following transitions involve maximum amount of energy?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-01 02:46:09', NULL),
(251991, '85,80,239,350', '<p>Which of the elements show least values of ionisation within their periods?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-01 02:46:56', NULL),
(251992, '85,80,239,350', '<p>Which one of the following has the largest ionisation energy</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-01 02:48:20', NULL),
(251993, '85,80,239,350', '<p>Which one of the following elements has the highest ionisation energy?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-01 02:50:39', NULL),
(251994, '85,80,239,350', '<p>The correct order of the second ionisation potential of carbon, nitrogen, oxygen and fluorine is</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-01 02:51:39', NULL),
(251995, '85,80,239,350', '<p>Which has the largest first ionisation energy?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-01 02:52:05', NULL),
(251996, '85,80,239,350', '<p>Which of the following elements has the highest ionisation energy?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-01 02:53:06', NULL),
(251997, '85,80,239,350', '<p>The ionisation of nitrogen is more than that of oxygen molecules because of</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-01 02:54:10', NULL),
(251998, '85,80,239,350', '<p>The set representing the correct order of the first ionisation potential is</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-01 02:55:20', NULL),
(251999, '85,80,239,350', '<p>The first ionisation potential of which of the element is highest</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-01 02:56:07', NULL),
(252000, '85,80,239,350', '<p>Highest ionisation potential in a period is shown by</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-01 02:57:00', NULL),
(252001, '85,80,239,350', '<p>The first ionisation energy is maximum for</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-01 02:57:59', NULL),
(252002, '85,80,239,350', '<p>What is the order of ionisation energies of the coinage metal?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-01 02:58:50', NULL),
(252003, '85,80,239,350', '<p>The second ionisation potentials in electron volts of oxygen and fluorine atoms are respectively given by</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-01 02:59:41', NULL),
(252004, '85,80,239,350', '<p>The value of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>I</mi><msub><mi>E</mi><mn>1</mn></msub><mo>,</mo><mo>&#160;</mo><mi>I</mi><msub><mi>E</mi><mn>2</mn></msub><mo>,</mo><mo>&#160;</mo><mi>I</mi><msub><mi>E</mi><mn>3</mn></msub><mo>&#160;</mo><mi>a</mi><mi>n</mi><mi>d</mi><mo>&#160;</mo><mi>I</mi><msub><mi>E</mi><mn>4</mn></msub></math>&nbsp;of an atom are respectively 7.5 eV, 25.6 eV, 48.6 eV and 170.6 eV. The electronic configuration of the atom will be</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-01 03:02:42', NULL),
(252005, '85,80,239,350', '<p><math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>I</mi><msub><mi>E</mi><mn>1</mn></msub><mo>,</mo><mo>&#160;</mo><mi>I</mi><msub><mi>E</mi><mn>2</mn></msub><mo>&#160;</mo><mi>a</mi><mi>n</mi><mi>d</mi><mo>&#160;</mo><mi>I</mi><msub><mi>E</mi><mn>3</mn></msub></math>&nbsp;values are 100, 150 and 1500 eV respectively The element can be</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-01 03:03:39', NULL),
(252006, '85,80,239,350', '<p>Which of the following ionisation energy values for calcium show a sudden increase?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-01 03:04:16', NULL),
(252007, '85,80,239,350', '<p>Which one of the following statements is incorrect in relation to ionisation enthalpy?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-01 03:06:04', NULL),
(252008, '85,80,239,350', '<p><math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>I</mi><msub><mi>E</mi><mn>2</mn></msub></math>&nbsp;for&nbsp; an element is invariably higher then&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>I</mi><msub><mi>E</mi><mn>1</mn></msub></math>&nbsp;because</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-01 03:07:38', NULL),
(252009, '85,80,239,350', '<p>Which of the following metals requires radiation of the lowest wavelength to cause emission of electrons?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-06 04:16:53', NULL),
(252010, '85,80,239,350', '<p>Which has the maximum IE?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-06 04:17:57', NULL),
(252011, '85,80,239,350', '<p>Compound XY is predominantly ionic as&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msup><mi>X</mi><mo>&#8853;</mo></msup><msup><mi>Y</mi><mi>&#920;</mi></msup></math>&nbsp;if</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-06 04:19:50', NULL),
(252012, '85,80,239,350', '<p>The correct order of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>I</mi><msub><mi>E</mi><mn>2</mn></msub></math>&nbsp;of C, N, O and F is</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-06 04:20:52', NULL),
(252013, '85,80,239,350', '<p>The least stable ion among the following is</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-06 04:22:49', NULL),
(252014, '85,80,239,350', '<p>Which has the most stable +2 oxidation state?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-06 04:24:01', NULL),
(252015, '85,80,239,350', '<p>Among the following elements (whose electronic configuration are given below) the one having the highest IE is</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-06 04:26:29', NULL),
(252016, '85,80,239,350', '<p>Select the incorrect statement.</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-06 04:29:45', NULL),
(252017, '85,80,239,350', '<p>If IE and EA of an element are 280 and 90 kcal&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>m</mi><mi>o</mi><msup><mi>l</mi><mrow><mo>-</mo><mn>1</mn></mrow></msup></math>&nbsp;respectively then EN of the element on Pauling scale is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-06 04:30:38', NULL),
(252018, '85,80,239,350', '<p>Aqueous solution of two compounds A-O-H and B-O-H are taken separately. If the EN of A = 3.0, B = 1.5, O = 3.5 and H = 2.1, then the nature of two solutions will be respectively.</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-06 04:32:15', NULL),
(252019, '85,80,239,350', '<p>Which of the following are isoelectronic?</p>\r\n\r\n<p><math class=\"wrs_chemistry\" xmlns=\"http://www.w3.org/1998/Math/MathML\"><msubsup><mi>NO</mi><mn>3</mn><mi mathvariant=\"normal\">&#920;</mi></msubsup><mo>,</mo><mo>&#160;</mo><msubsup><mi>CO</mi><mn>3</mn><mrow><mn>2</mn><mo>-</mo></mrow></msubsup><mo>,</mo><mo>&#160;</mo><msubsup><mi>CIO</mi><mn>3</mn><mi mathvariant=\"normal\">&#920;</mi></msubsup><mo>,</mo><mo>&#160;</mo><msub><mi>SO</mi><mn>2</mn></msub></math></p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-06 04:35:47', NULL),
(252020, '85,80,239,350', '<p>Consider the isoelectronic series,&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msup><mi>K</mi><mo>&#8853;</mo></msup><mo>,</mo><mo>&#160;</mo><msup><mi>S</mi><mrow><mn>2</mn><mo>-</mo></mrow></msup><mo>,</mo><mo>&#160;</mo><mi>C</mi><msup><mi>I</mi><mi>&#920;</mi></msup><mo>,</mo><mo>&#160;</mo><mi>C</mi><msup><mi>a</mi><mrow><mn>2</mn><mo>+</mo></mrow></msup></math>, the radii of the ions decrease as</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-06 04:39:36', NULL),
(252021, '85,80,239,350', '<p>Which of the following are isoelctronic species?</p>\r\n\r\n<p><math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mover><mrow><mi>C</mi><msub><mi>H</mi><mn>3</mn></msub></mrow><mo>&#8853;</mo></mover><mo>(</mo><mi>I</mi><mo>)</mo><mo>,</mo><mo>&#160;</mo><mover><mi>N</mi><mi>&#920;</mi></mover><msub><mi>H</mi><mn>2</mn></msub><mo>(</mo><mi>I</mi><mi>I</mi><mo>)</mo><mo>,</mo><mo>&#160;</mo><mover><mrow><mi>N</mi><msub><mi>H</mi><mn>4</mn></msub></mrow><mo>&#8853;</mo></mover><mo>(</mo><mi>I</mi><mi>I</mi><mi>I</mi><mo>)</mo><mo>&#160;</mo><mi>a</mi><mi>n</mi><mi>d</mi><mo>&#160;</mo><mi>N</mi><msub><mi>H</mi><mn>3</mn></msub><mo>(</mo><mi>I</mi><mi>V</mi><mo>)</mo></math></p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-06 04:43:44', NULL),
(252022, '85,80,239,350', '<p>Two p-block elements x (outer configuration&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>n</mi><msup><mi>s</mi><mn>2</mn></msup><mo>&#160;</mo><mi>n</mi><msup><mi>p</mi><mn>3</mn></msup><mo>)</mo></math>&nbsp;and z (outer configuration&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>n</mi><msup><mi>s</mi><mn>2</mn></msup><mi>n</mi><msup><mi>p</mi><mn>4</mn></msup></math>) occupy neighbouring positions in a period. Using this information which of the following is correct with respect to their ionisation potential&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>I</mi><mi>x</mi></msub><mo>&#160;</mo><mi>a</mi><mi>n</mi><mi>d</mi><mo>&#160;</mo><msub><mi>I</mi><mi>z</mi></msub></math>.</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-06 04:47:52', NULL),
(252023, '85,80,239,350', '<p>Considering the elements B, AI, Mg and K, the correct order of their metallic character is</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-06 04:49:18', NULL),
(252024, '85,80,239,350', '<p><math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>I</mi><msub><mi>E</mi><mn>1</mn></msub><mo>&#160;</mo><mi>a</mi><mi>n</mi><mi>d</mi><mo>&#160;</mo><mi>I</mi><msub><mi>E</mi><mn>2</mn></msub></math>&nbsp;of Mg are 178 and 348 kcal&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>m</mi><mi>o</mi><msup><mi>l</mi><mrow><mo>-</mo><mn>1</mn></mrow></msup></math>. The energy required for the reaction Mg&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mo>&#8594;</mo></math><math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>M</mi><msup><mi>g</mi><mrow><mn>2</mn><mo>+</mo></mrow></msup><mo>&#160;</mo><mo>+</mo><mo>&#160;</mo><mn>2</mn><mo>&#160;</mo><msup><mi>e</mi><mo>-</mo></msup></math>&nbsp;is</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-06 04:51:11', NULL),
(252025, '85,80,239,350', '<p>Considering the elements B, C, N and Si, the correct order of their non-metallic character is</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-06 04:53:14', NULL),
(252026, '85,80,239,350', '<p>Which of the following have least electron affinity?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-06 04:53:53', NULL),
(252027, '85,80,239,350', '<p>Second and successive electron affinity of an element</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-06 04:55:23', NULL),
(252028, '85,80,239,350', '<p>Which one of the following statements is incorrect?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-06 04:57:49', NULL),
(252029, '85,80,239,350', '<p>The lower electron affinity of fluorine than that of chlorine is due to</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-06 04:58:44', NULL),
(252030, '85,80,239,350', '<p>The EA order for halogen is</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-06 05:02:01', NULL),
(252031, '85,80,239,350', '<p>The EA for inert gases is likely to be</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-06 05:02:53', NULL),
(252032, '85,80,239,350', '<p>Ionisation of energy&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msup><mi>F</mi><mi>&#920;</mi></msup></math>&nbsp;is 320 kJ&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>m</mi><mi>o</mi><msup><mi>l</mi><mrow><mo>-</mo><mn>1</mn></mrow></msup></math>. The electron gain enthalpy of fluorine would be</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-06 05:05:33', NULL),
(252033, '85,80,239,350', '<p>Which of the following represents the correct order of electron affinities?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-06 05:06:35', NULL),
(252034, '85,80,239,350', '<p>Fluorine has the highest electronegativity among the group on the Pauling scale, but the electron affinity of fluorine is less than that of chlorine because</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-06 05:09:49', NULL),
(252035, '85,80,239,350', '<p>EA is positive when&nbsp;</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-06 05:11:09', NULL),
(252036, '85,80,239,350', '<p>Which is true about the electronegativity order of the following elements?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-06 05:13:15', NULL),
(252037, '85,80,239,350', '<p>The electronegativity of the following elements increases in the order</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 02:18:13', NULL),
(252038, '85,80,239,350', '<p>An atom with high EA generally has</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 02:18:59', NULL),
(252039, '85,80,239,350', '<p>The electronegativity of the following elements increases in the order</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 02:20:00', NULL),
(252040, '85,80,239,350', '<p>Downwards in a group, the electropositive character of elements</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 02:20:42', NULL),
(252041, '85,80,239,350', '<p>What is the correct order of electronegativity?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 02:22:29', NULL),
(252042, '85,80,239,350', '<p>Due to screening effect of electrons in an atom</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 02:23:14', NULL),
(252043, '85,80,239,350', '<p>Select the group where EN increases down the group.</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 02:24:01', NULL),
(252044, '85,80,239,350', '<p>Which of the following elements has the highest EN?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 02:24:28', NULL),
(252045, '85,80,239,350', '<p>The electronegativity values of C, N, O and F</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 02:25:37', NULL),
(252046, '85,80,239,350', '<p>EN value for four elements A, B, C and D are respectively 2.7, 2.1, 0.8 and 3.4. select incorrect statement based on given above data</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 02:27:31', NULL),
(252047, '85,80,239,350', '<p>Among the following oxides, which is least acidic?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 02:28:32', NULL),
(252048, '85,80,239,350', '<p>Which of the following oxides is the most basic?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 02:29:17', NULL),
(252049, '85,80,239,350', '<p>The order of which of the following oxides is arranged according to decreasing basic nature?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 02:34:50', NULL),
(252050, '85,80,239,350', '<p>The correct order of acidic strengths of the following is</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 02:37:50', NULL),
(252051, '85,80,239,350', '<p>What is the&nbsp; nature of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>A</mi><msub><mi>l</mi><mn>2</mn></msub><msub><mi>O</mi><mn>3</mn></msub><mo>&#160;</mo><mi>a</mi><mi>n</mi><mi>d</mi><mo>&#160;</mo><msub><mi>B</mi><mn>2</mn></msub><msub><mi>O</mi><mn>3</mn></msub></math>?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 02:39:11', NULL);
INSERT INTO `questions` (`id`, `category_id`, `question`, `question_type`, `answer_type`, `subjective_ans`, `marks`, `time`, `added_by`, `status`, `current_url`, `created_at`, `updated_at`) VALUES
(252052, '85,80,239,350', '<p>Which of the following oxides is neutral?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 02:40:29', NULL),
(252053, '85,80,239,350', '<p>Which of the following oxides is amphoteric in nature?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 02:42:03', NULL),
(252054, '85,80,239,350', '<p>The correct order of acidic strength of the following is</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 02:45:10', NULL),
(252055, '85,80,239,350', '<p>Which of the oxides behaves both as suboxide and as neutral oxide?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 02:46:06', NULL),
(252056, '85,80,239,350', '<p>Which of the oxides is not a mixed oxide?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 02:47:24', NULL),
(252057, '85,80,239,350', '<p>Which of the oxides is basic as well as normal oxide?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 02:48:22', NULL),
(252058, '85,80,239,350', '<p>Which is/are amphoteric oxide?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 02:48:56', NULL),
(252059, '85,80,239,350', '<p>(X), (Y), (Z) are elements in third short period. Oxide of (X) is ionic, (Y) is amphoteric and (Z) is a giant molecule. (X), (Y) and (Z) will have atomic number in the order:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 02:50:51', NULL),
(252060, '85,80,239,350', '<p>Decreasing order of bond angle of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mfenced><mrow><mi>N</mi><msub><mi>H</mi><mn>3</mn></msub><mo>,</mo><mo>&#160;</mo><mi>P</mi><msub><mi>H</mi><mn>3</mn></msub><mo>,</mo><mo>&#160;</mo><mi>A</mi><mi>s</mi><msub><mi>H</mi><mn>3</mn></msub></mrow></mfenced></math>&nbsp;is</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 02:53:33', NULL),
(252061, '85,80,239,350', '<p>Which of the following has the smallest bond length?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 02:54:49', NULL),
(252062, '85,80,239,350', '<p>Bond angle in&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>P</mi><msub><mi>H</mi><mn>3</mn></msub></math>&nbsp;is</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 02:56:18', NULL),
(252063, '85,80,239,350', '<p>The correct order of decreasing bond angles in&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>H</mi><mn>2</mn></msub><mi>S</mi><mo>,</mo><mo>&#160;</mo><mi>N</mi><msub><mi>H</mi><mn>3</mn></msub><mo>,</mo><mo>&#160;</mo><mi>B</mi><msub><mi>F</mi><mn>3</mn></msub><mo>&#160;</mo><mi>a</mi><mi>n</mi><mi>d</mi><mo>&#160;</mo><mi>S</mi><mi>i</mi><msub><mi>H</mi><mn>4</mn></msub></math>&nbsp;is</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 02:59:29', NULL),
(252064, '85,80,239,350', '<p>The bond angle around central atom is maximum for</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 03:00:20', NULL),
(252065, '85,80,239,350', '<p>Decreasing order of hydration energy of the following is</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 03:03:24', NULL),
(252066, '85,80,239,350', '<p>Extent of hydrolysis of the following is</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doupdate', '2025-09-07 03:06:04', NULL),
(252067, '85,80,239,350', '<p>Give the decreasing order of thermal stability of the following</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 03:09:36', NULL),
(252068, '85,80,239,350', '<p>Lattice energy of an ionic compound depends on</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 03:10:33', NULL),
(252069, '85,80,239,350', '<p><math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>N</mi><msub><mi>a</mi><mn>2</mn></msub><mi>S</mi><msub><mi>O</mi><mn>4</mn></msub></math>&nbsp;is soluble in water while&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>B</mi><mi>a</mi><mi>S</mi><msub><mi>O</mi><mn>4</mn></msub></math>&nbsp;is insoluble. Which of the following reasons is correct about the above statement?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 03:13:26', NULL),
(252070, '85,80,239,350', '<p>Which has maximum polarising power in cation?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 03:17:39', NULL),
(252071, '85,80,239,350', '<p>Which of the following ions has the highest heat of hydration?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 03:18:48', NULL),
(252072, '85,80,239,350', '<p>In which solvent KBr has maximum solubility?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 03:20:25', NULL),
(252073, '85,80,239,350', '<p>Lattice energy of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>B</mi><mi>e</mi><mi>C</mi><msub><mi>O</mi><mn>3</mn></msub><mo>(</mo><mi>l</mi><mo>)</mo><mo>,</mo><mo>&#160;</mo><mi>M</mi><mi>g</mi><mi>C</mi><msub><mi>O</mi><mn>3</mn></msub><mo>(</mo><mi>I</mi><mi>I</mi><mo>)</mo><mo>&#160;</mo><mi>a</mi><mi>n</mi><mi>d</mi><mo>&#160;</mo><mi>C</mi><mi>a</mi><mi>C</mi><msub><mi>O</mi><mn>3</mn></msub><mo>(</mo><mi>I</mi><mi>I</mi><mi>I</mi><mo>)</mo></math>&nbsp;is in order</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 03:22:08', NULL),
(252074, '85,80,239,350', '<p>The magnitude of lattice energy of a solid increases if&nbsp;</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 03:28:35', NULL),
(252075, '85,80,239,350', '<p>Which of the following is correct?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 03:29:50', NULL),
(252076, '85,80,239,350', '<p>Which of the following is incorrect?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 03:31:25', NULL),
(252077, '85,80,239,350', '<p>The ionisatio of hydrogen atom would give rise to</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 03:32:05', NULL),
(252078, '85,80,239,350', '<p>Chloride of an element A gives neutral solution in water. In the periodic table, the element A belongs to</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 03:32:51', NULL),
(252079, '85,80,239,350', '<p>In a period, density first_then_and in a group it_ down the group</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 03:34:09', NULL),
(252080, '85,80,239,350', '<p>In the tranformation of Na(s)&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mo>&#8594;</mo></math><math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>N</mi><msup><mi>a</mi><mo>&#8853;</mo></msup></math>(g), the energies involved are</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 03:36:22', NULL),
(252081, '85,80,239,350', '<p>Beryllium and aluminium exhibit many properties which are similar. But the two elements differ in</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 03:37:46', NULL),
(252082, '85,80,239,350', '<p>Among LiCl,&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>B</mi><mi>e</mi><mi>C</mi><msub><mi>l</mi><mn>2</mn></msub><mo>,</mo><mo>&#160;</mo><mi>B</mi><mi>C</mi><msub><mi>l</mi><mn>3</mn></msub><mo>&#160;</mo><mi>a</mi><mi>n</mi><mi>d</mi><mo>&#160;</mo><mi>C</mi><mi>C</mi><msub><mi>l</mi><mn>4</mn></msub></math>&nbsp;the covalent bond character follows the order</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 03:40:05', NULL),
(252083, '85,80,239,350', '<p>The correct order of polarisability of ion is</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 03:43:33', NULL),
(252084, '85,80,239,350', '<p>Diagonal relationship is shown by</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 03:44:39', NULL),
(252085, '85,80,239,350', '<p>Inert pair effect is shown by</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 03:45:17', NULL),
(252086, '85,80,239,350', '<p>Which has the maximum covalent character?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 03:46:07', NULL),
(252087, '85,80,239,350', '<p><math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>N</mi><msub><mi>O</mi><mn>2</mn></msub><mo>&#160;</mo><mi>a</mi><mi>n</mi><mi>d</mi><mo>&#160;</mo><msub><mi>N</mi><mn>2</mn></msub><msub><mi>O</mi><mn>4</mn></msub></math>&nbsp;are two forms of nitrogen dioxide. One exists in gaseous state while other in liquid state. The nature of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>N</mi><msub><mi>O</mi><mn>2</mn></msub><mo>&#160;</mo><mi>a</mi><mi>n</mi><mi>d</mi><mo>&#160;</mo><msub><mi>N</mi><mn>2</mn></msub><msub><mi>O</mi><mn>4</mn></msub></math>&nbsp;forms are</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 03:48:52', NULL),
(252088, '85,80,239,350', '<p>Magnetic moments of V (Z = 23), Cr (Z = 240 and Mn (Z = 25) are x, y and z respectively, hence</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 03:50:02', NULL),
(252089, '85,80,239,350', '<p>Which of the following molecules is theoretically not possible?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 03:51:14', NULL),
(252090, '85,80,239,350', '<p>Which pair is different from the others?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 03:51:51', NULL),
(252091, '85,80,239,241', '<p>What is the mass per cent of carbon in carbon dioxide?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 04:00:17', NULL),
(252092, '85,80,239,241', '<p>In a compound&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>A</mi><mi>x</mi></msub><msub><mi>B</mi><mi>y</mi></msub></math>&nbsp;:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 04:03:02', NULL),
(252093, '85,80,239,241', '<p>Dulong Petit&#39;s law is valid for:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 04:03:46', NULL),
(252094, '85,80,239,241', '<p>The empirical formula and molecular mass of a compound are&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>C</mi><mi>I</mi><mo>&#160;</mo><msub><mi>I</mi><mn>2</mn></msub><mi>O</mi></math>&nbsp;and 180g respectively. What will be the molecular formula of the compound?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 04:07:51', NULL),
(252095, '85,80,239,241', '<p>The number of atoms in n moles of gas can be given by:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 04:10:12', NULL),
(252096, '85,80,239,241', '<p>One mole of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>P</mi><mn>4</mn></msub></math>&nbsp;molecules contain:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 04:11:44', NULL),
(252097, '85,80,239,241', '<p>The total number of protons, electrons and neutrons in 12g of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\" class=\"wrs_chemistry\"><mmultiscripts><mi mathvariant=\"normal\">C</mi><mprescripts/><mn>6</mn><mn>12</mn></mmultiscripts></math>&nbsp;is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 04:13:14', NULL),
(252098, '85,80,239,241', '<p>The numerical value of N/n (where N is number of molecules in n moles of gas) is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 04:14:37', NULL),
(252099, '85,80,239,241', '<p>Which has the maximum number of atoms?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 04:16:03', NULL),
(252100, '85,80,239,241', '<p>The least number of molecules are contained in:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 04:17:07', NULL),
(252101, '85,80,239,241', '<p>Which is not a molecular formula ?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 04:18:24', NULL),
(252102, '85,80,239,241', '<p>Vapour density of a volatile substance is 4&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\" class=\"wrs_chemistry\"><mfenced><mrow><msub><mi>CH</mi><mn>4</mn></msub><mo>&#160;</mo><mo>=</mo><mn>1</mn></mrow></mfenced></math>. Its molar mass would be:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 04:19:31', NULL),
(252103, '85,80,239,241', '<p>If 0.22 g of a substance when vaporized displaced 45&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>c</mi><msup><mi>m</mi><mn>3</mn></msup></math>&nbsp;of air measured over water at 293 K and 755 mm pressure and if vapour pressure of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>H</mi><mn>2</mn></msub><mi>O</mi><mo>&#160;</mo><mo>=</mo><mo>&#160;</mo><mn>17</mn><mo>.</mo><mn>4</mn></math>&nbsp;mm then the molar mass of the substance will be:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 04:21:39', NULL),
(252104, '85,80,239,241', '<p>11.2 litre of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>N</mi><msub><mi>H</mi><mn>3</mn></msub></math>&nbsp;at STP has electrons:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 04:23:23', NULL),
(252105, '85,80,239,241', '<p>Two elements X (atomic mass = 75) and Y (atomic mass =&nbsp; 16) combine to give a compound having 75.8% of X. The formula of the compound is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 04:25:49', NULL),
(252106, '85,80,239,241', '<p>The pair of species having same percentage of carbon is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 04:28:37', NULL),
(252107, '85,80,239,241', '<p>510 mg of a liquid on vaporiation in Victor Meyer&#39;s apparatus displaces 67.2&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>c</mi><msup><mi>m</mi><mn>3</mn></msup></math>&nbsp;of air at&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mfenced><mrow><mi>S</mi><mi>T</mi><mi>P</mi></mrow></mfenced></math>. The molar mass of the liquid is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 04:29:59', NULL),
(252108, '85,80,239,241', '<p>If a compound contains two oxygen atoms, for carbon atoms and number of hydrogen atoms is double of carbon atoms, the vapour density of it is</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 04:31:33', NULL),
(252109, '85,80,239,241', '<p>The haemoglobin from the red blood corpuscles of most mammals contains approximately 0.33% of iron by mass. The molar mass of haemoglobin as 67,200. The number of iron atoms in each molecule of haemoglobin is (atomic mass of iron = 56)</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 04:33:19', NULL),
(252110, '85,80,239,241', '<p>The vapour density of gas A is three times that of gas B. If the molar mass of A is M, the molar mass of B is</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 04:35:16', NULL),
(252111, '85,80,239,241', '<p>The vapour density of a volatile chloride of a metal is 95 and the specific heat of the metal is 0.13 cal/g. The equivalent mass of the metal will be approximately</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 04:36:23', NULL),
(252112, '85,80,239,241', '<p>A gas is found to have the formula&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mfenced><mrow><mi>C</mi><mi>O</mi></mrow></mfenced><mi>x</mi></msub></math>. Its VD is 70. The value of x must be:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 04:37:20', NULL),
(252113, '85,80,239,241', '<p>The volume occupied by one molecule of water (density 1g&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>c</mi><msup><mi>m</mi><mrow><mo>-</mo><mn>3</mn></mrow></msup></math>) is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 04:39:08', NULL),
(252114, '85,80,239,241', '<p>Vapour density of a metal chloride is 66. Its oxide contains 53% metal. The atomic mass of the metal is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 04:40:05', NULL),
(252115, '85,80,239,241', '<p>224 mL of&nbsp; a triatomic gas weighs 1g at 273 K and 1 atm. The mass of one atom of this gas is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 04:41:46', NULL),
(252116, '85,80,239,241', '<p>The pair of compounds which cannot exist in solution is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 04:43:54', NULL),
(252117, '85,80,239,241', '<p>The percent of N in 66% pure&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mfenced><mrow><mi>N</mi><msub><mi>H</mi><mn>4</mn></msub></mrow></mfenced><mn>2</mn></msub><mi>S</mi><msub><mi>O</mi><mn>4</mn></msub></math>&nbsp;sample is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 13:30:26', NULL),
(252118, '85,80,239,241', '<p>Total number of atoms present in 1.0&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>c</mi><msup><mi>m</mi><mn>3</mn></msup></math>&nbsp;of solid glucose (density 0.8&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>g</mi><mo>/</mo><mi>c</mi><msup><mi>m</mi><mn>3</mn></msup></math>) at&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\" class=\"wrs_chemistry\"><msup><mn>25</mn><mo>&#176;</mo></msup><mi mathvariant=\"normal\">C</mi></math>&nbsp;are:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 13:32:14', NULL),
(252119, '85,80,239,241', '<p>Mass of oxygen in one mole each of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>F</mi><msub><mi>e</mi><mn>2</mn></msub><msub><mi>O</mi><mn>3</mn></msub></math>&nbsp;and FeO is in the simple ratio of:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 13:32:58', NULL),
(252120, '85,80,239,241', '<p>How many atoms are present in a mole of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>C</mi><msub><mi>H</mi><mn>3</mn></msub><mi>C</mi><mi>O</mi><mi>O</mi><msub><mi>C</mi><mn>2</mn></msub><msub><mi>H</mi><mn>5</mn></msub></math>?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 13:34:30', NULL),
(252121, '85,80,239,241', '<p>The gravimetric composition of water as H : O is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 13:35:01', NULL),
(252122, '85,80,239,241', '<p>Calculate g-atom of element in 40 kg, if mass of one atom of an element is 6.644&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mo>&#215;</mo><mo>&#160;</mo><msup><mn>10</mn><mrow><mo>-</mo><mn>23</mn></mrow></msup></math>g:&nbsp;</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 13:36:16', NULL),
(252123, '85,80,239,241', '<p>Number of g-atom of S present in 49 g&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>H</mi><mn>2</mn></msub><mi>S</mi><msub><mi>O</mi><mn>4</mn></msub></math>&nbsp;are:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 13:36:54', NULL),
(252124, '85,80,239,241', '<p>The&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>C</mi><msup><mi>l</mi><mo>-</mo></msup><mo>&#160;</mo><mi>a</mi><mi>n</mi><mi>d</mi><mo>&#160;</mo><mi>C</mi><msup><mi>a</mi><mrow><mn>2</mn><mo>+</mo></mrow></msup></math>&nbsp;ions in 222g&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>C</mi><mi>a</mi><mi>C</mi><msub><mi>l</mi><mn>2</mn></msub></math>&nbsp;are respectively:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 13:38:11', NULL),
(252125, '85,80,239,241', '<p>The number of moles of water in 488 g&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>B</mi><mi>a</mi><mi>C</mi><msub><mi>l</mi><mn>2</mn></msub><mo>&#160;</mo><mo>.</mo><mo>&#160;</mo><mn>2</mn><msub><mi>H</mi><mn>2</mn></msub><mi>O</mi></math>&nbsp;are</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 13:38:44', NULL),
(252126, '85,80,239,241', '<p>An oxide of a metal (M) contains 40% by mass of oxygen. Metal (M) has atomic mass of 24. The empirical formula of the oxide is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 13:40:05', NULL),
(252127, '85,80,239,241', '<p>Number of mole of 1&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msup><mi>m</mi><mn>3</mn></msup></math>&nbsp;gas at NTP are:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 13:40:53', NULL),
(252128, '85,80,239,241', '<p>The highest mass corresponds to which of the following?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 13:43:32', NULL),
(252129, '85,80,239,241', '<p>The largest number of molecules are in:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 13:45:55', NULL),
(252130, '85,80,239,241', '<p>Which contains greatest number of oxygen atoms?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 13:47:38', NULL),
(252131, '85,80,239,241', '<p>The percentage of nitrogen in urea is about</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 13:49:09', NULL),
(252132, '85,80,239,241', '<p>Number of electrons in 1.8 mL of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>H</mi><mn>2</mn></msub><mi>O</mi></math>&nbsp;is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 13:50:53', NULL),
(252133, '85,80,239,241', '<p>The mass of an atom of atomic mass 260 amu is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 13:52:02', NULL),
(252134, '85,80,239,241', '<p>Which has the highest mass ?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 13:53:23', NULL),
(252135, '85,80,239,241', '<p>P and Q are two elements which forms&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>P</mi><mn>2</mn></msub><msub><mi>Q</mi><mn>3</mn></msub><mo>&#160;</mo><mi>a</mi><mi>n</mi><mi>d</mi><mo>&#160;</mo><mi>P</mi><msub><mi>Q</mi><mn>2</mn></msub></math>. If 0.15 mole of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>P</mi><mn>2</mn></msub><msub><mi>Q</mi><mn>3</mn></msub></math>&nbsp;weighs 15.9 g and 0.15 mole of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>P</mi><msub><mi>Q</mi><mn>2</mn></msub></math>&nbsp;weighs 9.3 g, the atomic masses of P and Q are respectively:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 13:55:36', NULL),
(252136, '85,80,239,241', '<p>Number of years required to spend Avogadro&#39;s number of rupee at the rate of 1 million rupee per second:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 13:57:07', NULL),
(252137, '85,80,239,241', '<p>A cylinder made up of an allow containing Fe, Co and Mo equal to 71%, 12% and 17% respectively. The density of alloy is 8.20 g/ml. How many Co atoms are there in a cylinder of radius 2.50 cm and a length of 10.0 cm. Atomic mass of Co = 60 g&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>m</mi><mi>o</mi><msup><mi>l</mi><mrow><mo>-</mo><mn>1</mn></mrow></msup></math>.</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 14:00:18', NULL),
(252138, '85,80,239,241', '<p>Versene, a chelating agent having chemical formula&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>C</mi><mn>2</mn></msub><msub><mi>H</mi><mn>4</mn></msub><msub><mi>N</mi><mn>2</mn></msub><msub><mrow><mo>(</mo><msub><mi>C</mi><mn>2</mn></msub><msub><mi>H</mi><mn>2</mn></msub><msub><mi>O</mi><mn>2</mn></msub><mi>N</mi><mi>a</mi><mo>)</mo></mrow><mn>4</mn></msub></math>. If each mole of this compound could bind 1 mole of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>C</mi><msup><mi>a</mi><mrow><mn>2</mn><mo>+</mo></mrow></msup></math>, then the rating of pure versene expressed as mg of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>C</mi><mi>a</mi><mi>C</mi><msub><mi>O</mi><mn>3</mn></msub></math>&nbsp;bound per g of chelating agent is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 14:04:18', NULL),
(252139, '85,80,239,241', '<p>Equal mass of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>F</mi><msub><mi>e</mi><mn>2</mn></msub><msub><mi>O</mi><mn>3</mn></msub></math>&nbsp;and FeO has mass of oxygen in the ratio:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 14:04:57', NULL),
(252140, '85,80,239,241', '<p>The hydrated salt&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>N</mi><msub><mi>a</mi><mn>2</mn></msub><mi>S</mi><msub><mi>O</mi><mn>4</mn></msub><mo>&#160;</mo><mo>.</mo><mo>&#160;</mo><mi>n</mi><msub><mi>H</mi><mn>2</mn></msub><mi>O</mi></math>, undergoes 55% loss in mass on heating and becomesanhydrous. The value of n will be</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 14:06:30', NULL),
(252141, '85,80,239,241', '<p>What is the mass of oxygen that is required for the complete combustion of 2.8 kg of ethylene?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 14:08:09', NULL),
(252142, '85,80,239,241', '<p>The volume of air needed for complete combustion of 1 kg of carbon at STP is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 14:09:13', NULL),
(252143, '85,80,239,241', '<p>A mixture containing 100 g&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>H</mi><mn>2</mn></msub></math>&nbsp;and 100g&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>O</mi><mn>2</mn></msub></math>&nbsp;is ignited so taht water is formed according to the reaction,&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mn>2</mn><msub><mi>H</mi><mn>2</mn></msub><mo>&#160;</mo><mo>+</mo><mo>&#160;</mo><msub><mi>O</mi><mn>2</mn></msub><mo>&#160;</mo><mo>&#8594;</mo><mn>2</mn><msub><mi>H</mi><mn>2</mn></msub><mi>O</mi></math>: How much water will be formed?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 14:11:57', NULL),
(252144, '85,80,239,241', '<p>A partially dried clay mineral contains 8% water. The original sample contained 12% water and 45% silica. The % of silica in the partially dried sample is nearly:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 14:13:07', NULL),
(252145, '85,80,239,241', '<p>The dehydration yield of cyclohexanol to cyclohexene is 75% What would be the yield, if 100 g of cyclohexanol is dehydrated?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 14:14:36', NULL),
(252146, '85,80,239,241', '<p>On analysis a certain compound was found to contain iodine and oxygen in the ratio 254g of iodine and 80g of oxygen. The atomic mass of iodine is 127 and that of oxygen is 16. Which is the formula of the compound?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 14:17:13', NULL),
(252147, '85,80,239,241', '<p>A sample of pure Cu (3.18 g) heated in a stream of oxygen for some time gains in mass with the formation of black oxide of copper (CuO). The final mass is 3.92g. What pe cent of copper remains unoxidied?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 14:18:56', NULL),
(252148, '85,80,239,241', '<p>In an experiment 0.25 mole of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>N</mi><msub><mi>H</mi><mn>3</mn></msub></math>&nbsp;is formed when 0.5 mole of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>N</mi><mn>2</mn></msub><mo>&#160;</mo><mi>a</mi><mi>n</mi><mi>d</mi><mo>&#160;</mo><msub><mi>H</mi><mn>2</mn></msub></math>&nbsp;are allowed to react. The % yield of reactions is:</p>\r\n\r\n<p><math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>N</mi><mn>2</mn></msub><mo>&#160;</mo><mo>+</mo><mo>&#160;</mo><mn>3</mn><msub><mi>H</mi><mn>2</mn></msub><mo>&#160;</mo><mo>&#8594;</mo><mo>&#160;</mo><mn>2</mn><mi>N</mi><msub><mi>H</mi><mn>3</mn></msub></math>\\</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 14:20:41', NULL),
(252149, '85,80,239,241', '<p>Mass of oxygen required for combustion of 1 kg of a mixture of butane and isobutane is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 14:22:46', NULL),
(252150, '85,80,239,241', '<p>The reaction,&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mn>2</mn><mi>C</mi><mo>&#160;</mo><mo>+</mo><mo>&#160;</mo><mn>2</mn><msub><mi>O</mi><mn>2</mn></msub><mo>&#160;</mo><mo>&#8594;</mo><mo>&#160;</mo><mn>2</mn><mi>C</mi><msub><mi>O</mi><mn>2</mn></msub></math>&nbsp;is carried out by taking 24 g carbon and 96 g&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>O</mi><mn>2</mn></msub></math>. Which one is limiting reagent?&nbsp;</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 14:25:18', NULL),
(252151, '85,80,239,241', '<p>One litre of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>C</mi><msub><mi>O</mi><mn>2</mn></msub></math>&nbsp;is passed over hot coke. The volume becomes 1.4 litre. The per cent composition of products is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 14:26:34', NULL),
(252152, '85,80,239,241', '<p>The per cent loss in mass after heating a pure sample of potassium chlorate (molar mass = 122.5) will be:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 14:27:15', NULL),
(252153, '85,80,239,241', '<p>If a mixture containing 3 moles of hydrogen and 1 mole of nitrogen is converted completely into ammonia, The ratio of initial and final volumes under the same temperature and pressure would be:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 14:28:50', NULL),
(252154, '85,80,239,241', '<p>2.76g of silver carbonate on being strongly heated yields a residue weighing:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 14:29:29', NULL),
(252155, '85,80,239,241', '<p>10 mL of gaseous hydrocarbon on combustion gives 40 mL of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>C</mi><msub><mi>O</mi><mn>2</mn></msub><mo>(</mo><mi>g</mi><mo>)</mo></math>&nbsp;and 50 mL of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>H</mi><mn>2</mn></msub><mi>O</mi></math>&nbsp;(vap.) The hydrocarbon is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-07 14:31:21', NULL),
(252156, '85,80,239,241', '<p>In a gaseous reaction of the type aA + bB&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mo>&#8594;</mo></math>cC + dD, which is wrong at constant P and T ?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 01:27:12', NULL),
(252157, '85,80,239,241', '<p>For the reaction, A + 2B&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mo>&#8594;</mo></math>C, 5 moles of A and 8 moles of B will produce:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 01:28:35', NULL),
(252158, '85,80,239,241', '<p>Which of the following statements is correct about the reaction given below:</p>\r\n\r\n<p><math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mn>4</mn><mi>F</mi><mi>e</mi><mo>(</mo><mi>s</mi><mo>)</mo><mo>&#160;</mo><mo>+</mo><mo>&#160;</mo><mn>3</mn><msub><mi>O</mi><mn>2</mn></msub><mo>(</mo><mi>g</mi><mo>)</mo><mo>&#160;</mo><mo>&#8594;</mo><mn>2</mn><mi>F</mi><msub><mi>e</mi><mn>2</mn></msub><msub><mi>O</mi><mn>3</mn></msub><mo>(</mo><mi>g</mi><mo>)</mo></math></p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 01:32:07', NULL),
(252159, '85,80,239,241', '<p>Which of the following reactions is not correct according to the law of conservation of mass?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 01:35:56', NULL),
(252160, '85,80,239,241', '<p>Which of the following statements indicates that law of multiple proportion is being followed?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 01:39:23', NULL),
(252161, '85,80,239,241', '<p>A metal oxide is reduced by heating it in a stream of hydrogen. It is found that after complete reduction, 3.15 of the oxide have yielded 1.05g of the metal. We may deduce that:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 01:41:37', NULL),
(252162, '85,80,239,241', '<p>A metal oxide has the formula&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>Z</mi><mn>2</mn></msub><msub><mi>O</mi><mn>3</mn></msub></math>. It can be reduced by hydrogen to give free metal and water.0.1596g of the metal oxide requires 6 mg of hydrogen for complete reduction. The atomic mass of the metal is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 01:44:08', NULL),
(252163, '85,80,239,241', '<p>1.60g of a metal were dissolved in&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>H</mi><mi>N</mi><msub><mi>O</mi><mn>3</mn></msub></math>&nbsp;to prepare its nitrate. The nitrate on strong heating gives 2g oxide. The equivalent mass of metal is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 01:45:28', NULL),
(252164, '85,80,239,241', '<p>The chloride of a metal contains 71% chlorine by mass and the vapour density of it is 50. The atomic mass of the metal will be:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 01:46:10', NULL),
(252165, '85,80,239,241', '<p>Equivalent mass of an acid:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 01:47:06', NULL),
(252166, '85,80,239,241', '<p>A, E, M and n are the atomic mass, equivalent mass, molar mass and valence of an element. The correct relation is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 01:48:19', NULL),
(252167, '85,80,239,241', '<p>The masses of two elements which combine with one another are in the ratio of their</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 01:48:57', NULL),
(252168, '85,80,239,241', '<p>The equivalent mass of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>H</mi><mn>3</mn></msub><mi>P</mi><msub><mi>O</mi><mn>4</mn></msub></math>&nbsp;in the following reaction is:</p>\r\n\r\n<p><math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>H</mi><mn>3</mn></msub><mi>P</mi><msub><mi>O</mi><mn>4</mn></msub><mo>&#160;</mo><mo>+</mo><mo>&#160;</mo><mi>C</mi><mi>a</mi><msub><mrow><mo>(</mo><mi>O</mi><mi>H</mi><mo>)</mo></mrow><mn>2</mn></msub><mo>&#160;</mo><mo>&#8594;</mo><mi>C</mi><mi>a</mi><mi>H</mi><mi>P</mi><msub><mi>O</mi><mn>4</mn></msub><mo>&#160;</mo><mo>+</mo><mo>&#160;</mo><mn>2</mn><msub><mi>H</mi><mn>2</mn></msub><mi>O</mi></math>:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 01:50:09', NULL),
(252169, '85,80,239,241', '<p>20 g of an acid furnishes 0.5 moles of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>H</mi><mn>3</mn></msub><msup><mi>O</mi><mo>+</mo></msup></math>&nbsp;ions in its aqueous solution. The value of 1g equivalent of the acid will be:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 01:51:08', NULL),
(252170, '85,80,239,241', '<p>The atomic mass of a metal (M) is 27 and its equivalent mass is 9, the formula of its chloride will be:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 01:52:31', NULL),
(252171, '85,80,239,241', '<p>A metal M forms a compound&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>M</mi><mi>a</mi></msub><msub><mi>O</mi><mi>b</mi></msub></math>. The molar mass of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>M</mi><mi>a</mi></msub><msub><mi>O</mi><mi>b</mi></msub></math>&nbsp;and atomic mass of metal (x) can be given by :</p>\r\n\r\n<p>(E is eq. mass of metal)</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 01:55:28', NULL),
(252172, '85,80,239,241', '<p>1.520g of the hydroxide of a metal on ignition gave 0.995g of oxide. The equivalent mass of metal is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 01:56:18', NULL),
(252173, '85,80,239,241', '<p>Equivalent mass of bivalent metal is 32.7. Molar mass of its chloride is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 01:57:14', NULL),
(252174, '85,80,239,241', '<p>An oxide of metal has 20% oxygen, the equivalent mass of oxide is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 01:57:51', NULL),
(252175, '85,80,239,241', '<p>74.4 g of a metallic chloride contains 35.5g of chlorine. The equivalent mass of the metal is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 01:58:55', NULL),
(252176, '85,80,239,241', '<p>The oxide of a metal contains 60% of the metal. What will be the percentage of bromine in the bromide of the metal, if the valency of the metal is the same in both the oxide and the bromide?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 01:59:58', NULL),
(252177, '85,80,239,241', '<p>Approximate atomic mass of an element is 26.89. If its equivalent mass is 8.9 the exact atomic mass of element would be:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 02:00:53', NULL),
(252178, '85,80,239,241', '<p>In a metal chloride, the mass of metal and chlorine are in the ratio of 1 : 2. The equivalent mass of the metal will be:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 02:01:58', NULL),
(252179, '85,80,239,241', '<p>The oxide of an element possesses the formula&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>M</mi><mn>2</mn></msub><msub><mi>O</mi><mn>3</mn></msub></math>. If the equivalent mass of the metal is 9, then the atomic mass of the metal will be:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 02:03:18', NULL),
(252180, '85,80,239,241', '<p>Sulphur forms the chlorides&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>S</mi><mn>2</mn></msub><mi>C</mi><msub><mi>l</mi><msub><mrow><mn>2</mn><mo>&#160;</mo></mrow><mrow/></msub></msub><mo>&#160;</mo><mi>a</mi><mi>n</mi><mi>d</mi><mo>&#160;</mo><mi>S</mi><mi>C</mi><msub><mi>l</mi><mn>2</mn></msub></math>. The equivalent mass of sulphur in&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>S</mi><mi>C</mi><msub><mi>l</mi><mn>2</mn></msub></math>&nbsp;is 16. The equivalent mass of sulphur in&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>S</mi><mn>2</mn></msub><mi>C</mi><msub><mi>l</mi><mn>2</mn></msub></math>&nbsp;is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 02:05:04', NULL),
(252181, '85,80,239,241', '<p>The equivalent mass of a divalent metal is 31.82. The mass of a single atom is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 02:06:29', NULL),
(252182, '85,80,239,241', '<p>Equivalent mass of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>N</mi><msub><mi>H</mi><mn>3</mn></msub></math>&nbsp;as a base is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 02:07:00', NULL),
(252183, '85,80,239,241', '<p>0.84 of a metal carbonate reacts with 40 mL of N/2&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>H</mi><mn>2</mn></msub><mi>S</mi><msub><mi>O</mi><mn>4</mn></msub></math>. The equivalent mass of metal carbonate is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 02:07:53', NULL),
(252184, '85,80,239,241', '<p>5.6 litre of oxygen at NTP is equivalent to:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 02:08:31', NULL),
(252185, '85,80,239,241', '<p>5.6 litre of oxygen at NTP is equivalent to:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 02:08:38', NULL),
(252186, '85,80,239,241', '<p>What is the equivalent mass of ozone?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 02:08:59', NULL),
(252187, '85,80,239,241', '<p>Acidity and basicity of salt&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>B</mi><msub><mi>a</mi><mn>2</mn></msub><msub><mi>H</mi><mn>2</mn></msub><msub><mrow><mo>(</mo><mi>P</mi><msub><mi>O</mi><mn>4</mn></msub><mo>)</mo></mrow><mn>2</mn></msub></math>&nbsp;are respectively:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 02:09:49', NULL),
(252188, '85,80,239,241', '<p>The ratio of mole fraction of a solute and a solvent in a binary solution is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 02:10:25', NULL),
(252189, '85,80,239,241', '<p>Molar concentration of a solution in water is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 02:11:24', NULL),
(252190, '85,80,239,241', '<p>One mole of solute (NaCl) is dissolved in 1 litre water. The molarity of solution is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 02:12:11', NULL),
(252191, '85,80,239,241', '<p>Which term is to be correctly used for expressing concentration of electrolytes in solution?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 02:14:22', NULL),
(252192, '85,80,239,241', '<p>100 mL of 0.3 M HCl solution were mixed with 200 mL of 0.6 N&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>H</mi><mn>2</mn></msub><mi>S</mi><msub><mi>O</mi><mn>4</mn></msub></math>. The final acidic normality is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 02:15:18', NULL),
(252193, '85,80,239,241', '<p>Which of the following is incorrect:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 02:17:39', NULL),
(252194, '85,80,239,241', '<p>The term standard solution is used for the solutions whose:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 02:18:16', NULL),
(252195, '85,80,239,241', '<p>The density of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>N</mi><msub><mi>H</mi><mn>4</mn></msub><mi>O</mi><mi>H</mi></math>&nbsp;solution is 0.6 g/mL. It contains 34% by weight of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>N</mi><msub><mi>H</mi><mn>4</mn></msub><mi>O</mi><mi>H</mi></math>. Calculate the normality of the solution:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 02:19:21', NULL),
(252196, '85,80,239,241', '<p>The normality of 10% (mass/volume) acetic acid is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 02:19:58', NULL),
(252197, '85,80,239,241', '<p>What will be the normality of a solution obained by mixing 0.45 N and 0.60 N NaOH in the ratio 2 : 1 by volume?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 02:20:55', NULL),
(252198, '85,80,239,241', '<p>The molarity of 1 M solution of NaCl (sepcific gravity 1.0585 g/mL) is</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 02:22:01', NULL),
(252199, '85,80,239,241', '<p>The molarity of pure water is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 02:22:20', NULL),
(252200, '85,80,239,241', '<p>What volume of 0.8 M solution contains 0.1 milli mole of solute?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 02:23:05', NULL),
(252201, '85,80,239,241', '<p>How many g of glucose be dissolved to make one litre solution of 10% (mass/vol.) glucose?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 02:23:51', NULL),
(252202, '85,80,239,241', '<p>The amount of oxalic acid (hydrated) required to prepare 500 mL of its 0.1 N solution is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 02:24:34', NULL),
(252203, '85,80,239,241', '<p>171g of cane sugar (Molar mass = 342) are dissolved in 1000 g of water at&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\" class=\"wrs_chemistry\"><msup><mn>30</mn><mo>&#176;</mo></msup><mi mathvariant=\"normal\">C</mi></math>. If the density of solution is 1.1 g/mL, then:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 02:26:02', NULL),
(252204, '85,80,239,241', '<p>Concentration of HCl is 10. 100 mL of 1N HCl can be obtained by diluting:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 02:27:03', NULL);
INSERT INTO `questions` (`id`, `category_id`, `question`, `question_type`, `answer_type`, `subjective_ans`, `marks`, `time`, `added_by`, `status`, `current_url`, `created_at`, `updated_at`) VALUES
(252205, '85,80,239,241', '<p>How much water is to be added to dilute 10 mL of 10 N HCl to make it decinormal?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 02:27:54', NULL),
(252206, '85,80,239,241', '<p>Mole fraction of A in water is 0.2. The molality of A in water is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 02:28:24', NULL),
(252207, '85,80,239,241', '<p>10 mL of concentrated&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>H</mi><mn>2</mn></msub><mi>S</mi><msub><mi>O</mi><mn>4</mn></msub></math>&nbsp;( 18 M) is diluted to one litre. The approximate molarity of the dilute acid is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 02:29:20', NULL),
(252208, '85,80,239,241', '<p>0.52 g of a dibasic acid required 100 mL of 0.1 N NaOH for complete neutralisation. The equivalent mass of acid is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 02:30:05', NULL),
(252209, '85,80,239,241', '<p>The concentration of solution containing 0.5 mole&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>H</mi><mn>3</mn></msub><mi>P</mi><msub><mi>O</mi><mn>4</mn></msub></math>&nbsp;dissolved in 500 g water:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 02:30:57', NULL),
(252210, '85,80,239,241', '<p>If 250 mL of a solution contains 2.7 g of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>H</mi><mn>3</mn></msub><mi>P</mi><msub><mi>O</mi><mn>4</mn></msub></math>, the normality of the solution is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 02:31:43', NULL),
(252211, '85,80,239,241', '<p>The solution having lowest molar concentration is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 02:33:19', NULL),
(252212, '85,80,239,241', '<p>1.5 litre of a solution of normality N and 2.5 litres of 2M HCl are mixed together. The resultant solution had a normality 5. The value of N is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 02:34:12', NULL),
(252213, '85,80,239,241', '<p>An aqueous solution of urea containing 18g urea in 1500&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>c</mi><msup><mi>m</mi><mn>3</mn></msup></math>&nbsp;of solution has a density of 1.052 g/<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>c</mi><msup><mi>m</mi><mn>3</mn></msup></math>. If the molar mass of urea is 60, then the molality of solution is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 02:36:28', NULL),
(252214, '85,80,239,241', '<p>The amount of anhydrous&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>N</mi><mi>a</mi><mi>C</mi><msub><mi>O</mi><mn>3</mn></msub></math>&nbsp;present in 250 mL of 0.25 M solution is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 02:37:25', NULL),
(252215, '85,80,239,241', '<p>On dissolving 1 mole each of the following acids in 1 litre water, the acid which do not give a solution of 1 N strength is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 02:38:56', NULL),
(252216, '85,80,239,241', '<p>The mole fraction of NaCl in a solution containing 1 mole of NaCl in 1000 g of water is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 02:39:32', NULL),
(252217, '85,80,239,241', '<p>How many g of KCl would have to be dissolved in&nbsp; 60 g&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>H</mi><mn>2</mn></msub><mi>O</mi></math>&nbsp;to give 20% by mass of solution?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 02:40:25', NULL),
(252218, '85,80,239,241', '<p>The mole fraction of oxygen in a mixture of 7g of nitrogen and 8g of oxygen is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 02:41:44', NULL),
(252219, '85,80,239,241', '<p>The solution A and B are 0.1 and 0.2 molar in a substance. If 100 mL of A are mixed with 25 mL of B and there is no change in volume on mixing then the final molarity of the solution is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 02:43:33', NULL),
(252220, '85,80,239,241', '<p>Molar mass of oxalic acid is 126. The mass of oxalic acid required to neutralise 1000 mL of normal solution of NaOH is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 02:44:42', NULL),
(252221, '85,80,239,241', '<p>50 mL of an aqueous solution of glucose contains&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mn>6</mn><mo>.</mo><mn>02</mn><mo>&#160;</mo><mo>&#215;</mo><mo>&#160;</mo><msup><mn>10</mn><mn>22</mn></msup></math>&nbsp;molecules. The concentration of solution is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 15:28:57', NULL),
(252222, '85,80,239,241', '<p>A solution of HCl containing 0.03659 g/mL and another solution of acetic containg 0.04509 g/mL, then:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 15:30:34', NULL),
(252223, '85,80,239,241', '<p>What will be the molarity of a solution, which contains 5.85 g of NaCl(s) per 500 mL?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 15:31:44', NULL),
(252224, '85,80,239,241', '<p>If 500 mL of a 5 m solution is diluted to 1500 mL, what will be the molarity of the solution obtained?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 15:32:31', NULL),
(252225, '85,80,239,241', '<p>What will be the molality of the solution containing 18.25g of HCl gas in 500 g of water?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 15:33:13', NULL),
(252226, '85,80,239,241', '<p>One mole of any substance contains&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mn>6</mn><mo>.</mo><mn>022</mn><mo>&#160;</mo><mo>&#215;</mo><mo>&#160;</mo><msup><mn>10</mn><mn>23</mn></msup></math>&nbsp;atoms/molecules. Number of molecules of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>H</mi><mn>2</mn></msub><mi>S</mi><msub><mi>O</mi><mn>4</mn></msub></math>&nbsp;present in 100 mL of 0.02 M&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>H</mi><mn>2</mn></msub><mi>S</mi><msub><mi>O</mi><mn>4</mn></msub></math>&nbsp;solution is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 15:35:18', NULL),
(252227, '85,80,239,241', '<p>If the density of a solution is 3.12 g&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>m</mi><msup><mi>L</mi><mrow><mo>-</mo><mn>1</mn></mrow></msup></math>, the mass of 1.5 mL solution in significant figures is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 15:36:42', NULL),
(252228, '85,80,239,241', '<p>One mole of a mixture of CO and&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>C</mi><msub><mi>O</mi><mn>2</mn></msub></math>&nbsp;requires exactly 20g of NaOH in solution for complete conversion of all the&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>C</mi><msub><mi>O</mi><mn>2</mn></msub></math>&nbsp;into&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>N</mi><msub><mi>a</mi><mn>2</mn></msub><mi>C</mi><msub><mi>O</mi><mn>3</mn></msub></math>. How much NaOH would it require for conversion into&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>N</mi><msub><mi>a</mi><mn>2</mn></msub><mi>C</mi><msub><mi>O</mi><mn>3</mn></msub></math>, if the mixture (one mole) is completely oxidised to&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>C</mi><msub><mi>O</mi><mn>2</mn></msub></math>&nbsp;?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 15:39:08', NULL),
(252229, '85,80,239,241', '<p>Equal volumes of 0.1 M&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>A</mi><mi>g</mi><mi>N</mi><msub><mi>O</mi><mn>3</mn></msub></math>&nbsp;and 0.2 M NaCl are mixed. The concentration of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\" class=\"wrs_chemistry\"><msubsup><mi>NO</mi><mn>3</mn><mo>-</mo></msubsup></math>&nbsp;ions in the mixture will be:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 15:40:47', NULL),
(252230, '85,80,239,241', '<p>The mass of 50% (w/w) solution of HCl requires to react with 100 g of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>C</mi><mi>a</mi><mi>C</mi><msub><mi>O</mi><mn>3</mn></msub></math>&nbsp;would we:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 15:42:13', NULL),
(252231, '85,80,239,241', '<p><math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>H</mi><mn>3</mn></msub><mi>P</mi><msub><mi>O</mi><mn>4</mn></msub></math>&nbsp;is a tribasic acid and one of its salts in&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>N</mi><mi>a</mi><msub><mi>H</mi><mn>2</mn></msub><mi>P</mi><msub><mi>O</mi><mn>4</mn></msub></math>. What volume of 1 M NaOH should be added to 12 g&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>N</mi><mi>a</mi><msub><mi>H</mi><mn>2</mn></msub><mi>P</mi><msub><mi>O</mi><mn>4</mn></msub></math>&nbsp;(Molar mass 120) to exactly convert it into&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>N</mi><msub><mi>a</mi><mn>3</mn></msub><mi>P</mi><msub><mi>O</mi><mn>4</mn></msub></math>&nbsp;?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 15:45:06', NULL),
(252232, '85,80,239,241', '<p>One g of a mixture of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>N</mi><msub><mi>a</mi><mn>2</mn></msub><mi>C</mi><msub><mi>O</mi><mn>3</mn></msub><mo>&#160;</mo><mi>a</mi><mi>n</mi><mi>d</mi><mo>&#160;</mo><mi>N</mi><mi>a</mi><mi>H</mi><mi>C</mi><msub><mi>O</mi><mn>3</mn></msub></math>&nbsp;consumes y equivalent of HCl for complete neutralisation. One g of the mixture is strongly heated, then cooled and the residue treated with HCl. How many equivalent of HCl would be required for complete neutralisation?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 15:47:36', NULL),
(252233, '85,80,239,241', '<p>0.7g of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>N</mi><msub><mi>a</mi><mn>2</mn></msub><mi>C</mi><msub><mi>O</mi><mn>3</mn></msub><mo>&#160;</mo><mo>.</mo><mo>&#160;</mo><mi>x</mi><msub><mi>H</mi><mn>2</mn></msub><mi>O</mi></math>&nbsp;were dissolved in water and the volume was made to 100 mL, 20 mL of this solution required 19.8 mL of N/10 HCl for complete neutralisation. The value of x is</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 15:49:05', NULL),
(252234, '85,80,239,241', '<p>What is the purity of impure&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>H</mi><mn>2</mn></msub><mi>S</mi><msub><mi>O</mi><mn>4</mn></msub></math>&nbsp;solution having density 1.8 g/mL if 50 mL of this solution requires 42.3 mL of 4.0 N NaOH:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 15:50:41', NULL),
(252235, '85,80,239,241', '<p>A solution contains&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>N</mi><msub><mi>a</mi><mn>2</mn></msub><mi>C</mi><msub><mi>O</mi><mn>3</mn></msub><mo>&#160;</mo><mi>a</mi><mi>n</mi><mi>d</mi><mo>&#160;</mo><mi>N</mi><mi>a</mi><mi>H</mi><mi>C</mi><msub><mi>O</mi><mn>3</mn></msub></math>. 10 mL of the solution required 2.5 mL of 0.1 M&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>H</mi><mn>2</mn></msub><mi>S</mi><msub><mi>O</mi><mn>4</mn></msub></math>&nbsp;for neutralisation using phenolphthalen as indicator. Methyl orange is then added when a further 2.5 mL of 0.2 M&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>H</mi><mn>2</mn></msub><mi>S</mi><msub><mi>O</mi><mn>4</mn></msub></math>&nbsp;was required. The amount of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>N</mi><msub><mi>a</mi><mn>2</mn></msub><mi>C</mi><msub><mi>O</mi><mn>3</mn></msub></math>&nbsp;and&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>N</mi><mi>a</mi><mi>H</mi><mi>C</mi><msub><mi>O</mi><mn>3</mn></msub></math>&nbsp;in 1 litre of the solution is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 15:53:10', NULL),
(252236, '85,80,239,241', '<p>The ratio of amounts of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>H</mi><mn>2</mn></msub><mi>S</mi></math>&nbsp;needed to precipitate all the metals ions from 100 mL of 1 M&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>A</mi><mi>g</mi><mi>N</mi><msub><mi>O</mi><mn>3</mn></msub></math>&nbsp;and 100 mL of 1 M&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>C</mi><mi>u</mi><mi>S</mi><msub><mi>O</mi><mn>4</mn></msub></math>&nbsp;is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 15:54:33', NULL),
(252237, '85,80,239,241', '<p>45g of acid of molar mass 90 neutralised by 200 mL of 5N caustic potash. The basicity of the acid is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 15:55:15', NULL),
(252238, '85,80,239,241', '<p>How many moles of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>F</mi><msup><mi>e</mi><mrow><mn>2</mn><mo>+</mo></mrow></msup></math>&nbsp;ions are formed, when excess of iron is treated with 50 mL of 4.0 M HCl under inert atmosphere? Assume no change in volume:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 15:56:14', NULL),
(252239, '85,80,239,241', '<p>The volume of 0.25 M&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>H</mi><mn>3</mn></msub><mi>P</mi><mi>O</mi></math>&nbsp;required to neutralise 25 mL of 0.03 M Ca<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mfenced><mrow><mi>O</mi><mi>H</mi></mrow></mfenced><mn>2</mn></msub></math>&nbsp;is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 15:57:20', NULL),
(252240, '85,80,239,241', '<p>The maximum amount of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>B</mi><mi>a</mi><mi>S</mi><msub><mi>O</mi><mn>4</mn></msub></math>&nbsp;precipitated on mixing 20 mL of 0.5 M&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>B</mi><mi>a</mi><mi>C</mi><msub><mi>l</mi><mn>2</mn></msub><mo>&#160;</mo><mi>w</mi><mi>i</mi><mi>t</mi><mi>h</mi><mo>&#160;</mo><mn>20</mn><mo>&#160;</mo><mi>m</mi><mi>L</mi><mo>&#160;</mo><mi>o</mi><mi>f</mi><mo>&#160;</mo><mn>1</mn><mo>&#160;</mo><mi>M</mi><mo>&#160;</mo><msub><mi>H</mi><mn>2</mn></msub><mi>S</mi><msub><mi>O</mi><mn>4</mn></msub></math>&nbsp;is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 15:58:36', NULL),
(252241, '85,80,239,241', '<p>If 20 mL of 0.4 N NaOH solution completely neutralizes 40 mL of a dibasic acid, the molarity of the acid solution is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 15:59:35', NULL),
(252242, '85,80,239,241', '<p>The mass of sulphuric acid needed for dissolving 3g magnesium carbonate is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 16:00:14', NULL),
(252243, '85,80,239,241', '<p>If 5.0 mole of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>B</mi><mi>a</mi><mi>C</mi><msub><mi>l</mi><mn>2</mn></msub></math>&nbsp;is mixed with 0.2 mole of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>N</mi><msub><mi>a</mi><mn>3</mn></msub><mi>P</mi><msub><mi>O</mi><mn>4</mn></msub></math>&nbsp;the maximum number of mole of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>B</mi><msub><mi>a</mi><mn>3</mn></msub><msub><mfenced><mrow><mi>P</mi><msub><mi>O</mi><mn>4</mn></msub></mrow></mfenced><mn>2</mn></msub></math>&nbsp;that can be formed is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 16:01:42', NULL),
(252244, '85,80,239,241', '<p>The minimum quantity of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>H</mi><mn>2</mn></msub><mi>S</mi></math>&nbsp;needed to precipitate 63.5 g of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>C</mi><msup><mi>u</mi><mrow><mn>2</mn><mo>+</mo></mrow></msup></math>&nbsp;will be nearly:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 16:02:40', NULL),
(252245, '85,80,239,241', '<p>1000g of aqueous solution of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>C</mi><mi>a</mi><mi>C</mi><msub><mi>O</mi><mn>3</mn></msub></math>&nbsp;contains 10g of calcium carbonate. Concentration of solution is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 16:07:35', NULL),
(252246, '85,80,239,241', '<p>One litre of hard water contains 12.0 mg&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>M</mi><msup><mi>g</mi><mrow><mn>2</mn><mo>+</mo></mrow></msup></math>&nbsp;ions. Milli equivalent of washing soda required to remove its hardness is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 16:08:41', NULL),
(252247, '85,80,239,241', '<p>10 litre of hard water required 5.6g of lime to remove hardness of water. Thus temporary hardness of water in terms of ppm of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>C</mi><mi>a</mi><mi>C</mi><msub><mi>O</mi><mn>3</mn></msub></math>&nbsp;is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 16:09:39', NULL),
(252248, '85,80,239,241', '<p>The nucleus of F-atom is a sphere of radius&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mn>5</mn><mo>&#215;</mo><mo>&#160;</mo><msup><mn>10</mn><mrow><mo>-</mo><mn>13</mn></mrow></msup></math>cm. What would be its density?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 16:12:12', NULL),
(252249, '85,80,239,241', '<p>Which of the following is inocorrect about concentration of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>H</mi><mn>2</mn></msub><msub><mi>O</mi><mn>2</mn></msub></math></p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 16:14:29', NULL),
(252250, '85,80,239,241', '<p>A sample of peanut oil weighing 1.5763g is added to 25 mL of 0.4210 M KOH after saponification is complete 8.46 mL of 0.2732 M&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>H</mi><mn>2</mn></msub><mi>S</mi><msub><mi>O</mi><mn>4</mn></msub></math>&nbsp;is needed to neutralise excess KOH. The saponification number of peanut oil is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 16:16:15', NULL),
(252251, '85,80,239,241', '<p>The total molarity of all the ions containing 0.1 M of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>C</mi><mi>u</mi><mi>S</mi><msub><mi>O</mi><mn>4</mn></msub></math>&nbsp;and 0.1 M of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>A</mi><msub><mi>l</mi><mn>2</mn></msub><msub><mfenced><mrow><mi>S</mi><msub><mi>O</mi><mn>4</mn></msub></mrow></mfenced><mn>3</mn></msub></math>&nbsp;is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 16:17:26', NULL),
(252252, '85,80,239,241', '<p>To what extent must a given solution containing 40 mg&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>A</mi><mi>g</mi><mi>N</mi><msub><mi>O</mi><mn>3</mn></msub></math>&nbsp;per mL be diluted to yield a solution containing 16g&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>A</mi><mi>g</mi><mi>N</mi><msub><mi>O</mi><mn>3</mn></msub></math>&nbsp;per mL?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 16:19:16', NULL),
(252253, '85,80,239,241', '<p>0.5g of fuming&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>H</mi><mn>2</mn></msub><mi>S</mi><msub><mi>O</mi><mn>4</mn></msub></math>&nbsp;(oleum) is diluted with water. This solution is completely neutralised by 26.7 mL of 0.4 N NaOH. The percentage of free&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>S</mi><msub><mi>O</mi><mn>3</mn></msub></math>&nbsp;in teh sample is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 16:20:44', NULL),
(252254, '85,80,239,241', '<p><math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>H</mi><mn>2</mn></msub><msub><mi>O</mi><mn>2</mn></msub></math>&nbsp;solution used for hair bleaching is sold as a solution of approximately 5.0g&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>H</mi><mn>2</mn></msub><msub><mi>O</mi><mn>2</mn></msub></math>&nbsp;per 100 mL of the solution. The molar mass of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>H</mi><mn>2</mn></msub><msub><mi>O</mi><mn>2</mn></msub></math>&nbsp;is 34. The molarity of this solution is approximately.</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 16:22:12', NULL),
(252255, '85,80,239,241', '<p>34 g of hydrogen peroxide is present in 1120 mL of solution. This solution is called</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 16:23:00', NULL),
(252256, '85,80,239,241', '<p>Ionic strength of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\" class=\"wrs_chemistry\"><mi>A</mi><msup><mi>l</mi><mn>3</mn></msup><mo mathvariant=\"italic\">&#160;</mo><mi>a</mi><mi>n</mi><mi>d</mi><mo mathvariant=\"italic\">&#160;</mo><mi>S</mi><msubsup><mi>O</mi><mn mathvariant=\"italic\">4</mn><mrow><mn mathvariant=\"italic\">2</mn><mo mathvariant=\"italic\">-</mo></mrow></msubsup></math>&nbsp;respectively in 0.2 M&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>A</mi><msub><mi>l</mi><mn>2</mn></msub><msub><mrow><mo>(</mo><mi>S</mi><msub><mi>O</mi><mn>4</mn></msub><mo>)</mo></mrow><mn>3</mn></msub></math>&nbsp;aqueous solution:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 16:24:17', NULL),
(252257, '85,80,239,241', '<p>Ionic strength of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\" class=\"wrs_chemistry\"><mi>A</mi><msup><mi>l</mi><mrow><mn>3</mn><mo>+</mo></mrow></msup><mo>&#160;</mo><mi>a</mi><mi>n</mi><mi>d</mi><mo>&#160;</mo><mi>S</mi><msubsup><mi>O</mi><mn mathvariant=\"italic\">4</mn><mrow><mn mathvariant=\"italic\">2</mn><mo mathvariant=\"italic\">-</mo></mrow></msubsup></math>&nbsp;respectively in 0.2 M&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>A</mi><msub><mi>l</mi><mn>3</mn></msub><mo>&#160;</mo><mi>a</mi><mi>n</mi><mi>d</mi><mo>&#160;</mo><mn>0</mn><mo>.</mo><mn>3</mn><mo>&#160;</mo><mi>M</mi><mo>&#160;</mo><mi>A</mi><msub><mi>l</mi><mn>2</mn></msub><msub><mrow><mo>(</mo><mi>S</mi><msub><mi>O</mi><mn>4</mn></msub><mo>)</mo></mrow><mn>3</mn></msub></math>:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 16:25:34', NULL),
(252258, '85,80,239,241', '<p>18g water is added to a solution lebelled 127%&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>H</mi><mn>2</mn></msub><mi>S</mi><msub><mi>O</mi><mn>4</mn></msub></math>. How much mole of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>S</mi><msub><mi>O</mi><mn>3</mn></msub></math>&nbsp;are left undissolved in solution?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 16:26:38', NULL),
(252259, '85,80,239,241', '<p>Hardness of water is usually expressed in terms of ppm of:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 16:27:39', NULL),
(252260, '85,80,239,241', '<p>5 mL of N HCl, 20 mL of N/2&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>H</mi><mn>2</mn></msub><mi>S</mi><msub><mi>O</mi><mn>4</mn></msub><mo>&#160;</mo><mi>a</mi><mi>n</mi><mi>d</mi><mo>&#160;</mo><mn>30</mn><mo>&#160;</mo></math>mL of N/3&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>H</mi><mi>N</mi><msub><mi>O</mi><mn>3</mn></msub></math>&nbsp;are mixed together and volume made on litre. The normality of the resulting solution is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 16:28:53', NULL),
(252261, '85,80,239,241', '<p>A measured temperature on Fahrenheit scale is&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\" class=\"wrs_chemistry\"><msup><mn>200</mn><mo>&#176;</mo></msup><mi mathvariant=\"normal\">F</mi></math>&nbsp;. What will this reading be on Celsius scale?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-08 16:30:18', NULL),
(252262, '85,80,239,241', '<p>A gaseous mixture of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>N</mi><msub><mi>O</mi><mn>2</mn></msub><mo>&#160;</mo><mi>a</mi><mi>n</mi><mi>d</mi><mo>&#160;</mo><msub><mi>N</mi><mn>2</mn></msub><msub><mi>O</mi><mn>4</mn></msub></math>&nbsp;has 46%&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>N</mi><mn>2</mn></msub><msub><mi>O</mi><mn>4</mn></msub></math>. The vapour density of mixture is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-10 02:08:30', NULL),
(252263, '85,80,239,241', '<p>The vapour density of a mixture containing&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>N</mi><msub><mi>O</mi><mn>2</mn></msub><mo>&#160;</mo><mi>a</mi><mi>n</mi><mi>d</mi><mo>&#160;</mo><msub><mi>N</mi><mn>2</mn></msub><msub><mi>O</mi><mn>4</mn></msub></math>&nbsp;is 38.3 at&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\" class=\"wrs_chemistry\"><msup><mn>27</mn><mo>&#176;</mo></msup></math>C. The mole of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>N</mi><msub><mi>O</mi><mn>2</mn></msub></math>&nbsp;in 100g mixture and 100 mole mixture are respectively:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-10 02:10:32', NULL),
(252264, '85,80,239,241', '<p>What volume at NTP of ammonia gas will be required to be passed into 30 mL of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>N</mi><msub><mi>H</mi><mn>2</mn></msub><mi>S</mi><msub><mi>O</mi><mn>4</mn></msub></math>&nbsp;to bring down the acid normality to 0.2 N?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-10 02:11:44', NULL),
(252265, '85,80,239,241', '<p>A 5 mL solution of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>H</mi><mn>2</mn></msub><msub><mi>O</mi><mn>2</mn></msub></math>&nbsp;liberates 0.508 g of Iodine from an acidified KI solution. What is the volume strength of the&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>H</mi><mn>2</mn></msub><msub><mi>O</mi><mn>2</mn></msub></math>&nbsp;solution?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-10 02:12:59', NULL),
(252266, '85,80,239,241', '<p>1.5 litre of a solution of normality N and 2.5 litre of 2M HCl are mixed together. The resultant solution had a normality 5. The value of N is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-10 02:14:05', NULL),
(252267, '85,80,239,241', '<p>The volume of 0.25 M&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>H</mi><mn>3</mn></msub><mi>P</mi><msub><mi>O</mi><mn>3</mn></msub></math>&nbsp;required to neutralise 25 mL of 0.03 M Ca<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mfenced><mrow><mi>O</mi><mi>H</mi></mrow></mfenced><mn>2</mn></msub></math>&nbsp;is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-10 02:15:11', NULL),
(252268, '85,80,239,241', '<p>Borax in water gives&nbsp;</p>\r\n\r\n<p><math xmlns=\"http://www.w3.org/1998/Math/MathML\" class=\"wrs_chemistry\"><msub><mi mathvariant=\"normal\">B</mi><mn>4</mn></msub><msubsup><mi mathvariant=\"normal\">O</mi><mn>7</mn><mrow><mn>2</mn><mo>-</mo></mrow></msubsup><mo>&#160;</mo><mo>+</mo><mo>&#160;</mo><mn>7</mn><msub><mi mathvariant=\"normal\">H</mi><mn>2</mn></msub><mi mathvariant=\"normal\">O</mi><mo>&#160;</mo><mo>&#8594;</mo><mn>4</mn><msub><mi mathvariant=\"normal\">H</mi><mn>3</mn></msub><msub><mi>BO</mi><mn>3</mn></msub><mo>&#160;</mo><mo>+</mo><mo>&#160;</mo><mn>2</mn><msup><mi>OH</mi><mo>-</mo></msup></math></p>\r\n\r\n<p>How many grams of Borax&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mfenced><mrow><mi>N</mi><msub><mi>a</mi><mn>2</mn></msub><msub><mi>B</mi><mn>4</mn></msub><msub><mi>O</mi><mn>7</mn></msub><mo>.</mo><mn>10</mn><msub><mi>H</mi><mn>2</mn></msub><mi>O</mi></mrow></mfenced></math>&nbsp;are required to prepare 50 mL of 0.2 M solution</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-10 02:17:03', NULL),
(252269, '85,80,239,241', '<p>50 mL of a solution containing 1g each of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>N</mi><msub><mi>a</mi><mn>2</mn></msub><mi>C</mi><msub><mi>O</mi><mn>3</mn></msub><mo>,</mo><mo>&#160;</mo><mi>N</mi><mi>a</mi><mi>H</mi><mi>C</mi><msub><mi>O</mi><mn>3</mn></msub></math>&nbsp;and NaOH was titrated with N-HCI. What will be the titre reading when only phenolphthalein is used as indicator?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-10 02:18:56', NULL),
(252270, '85,80,239,241', '<p>A solution containing&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>N</mi><msub><mi>a</mi><mn>2</mn></msub><mi>C</mi><msub><mi>O</mi><mn>3</mn></msub></math>&nbsp;and NaOH requires 300 mL of 0.1 N HCI using phenolphthalein as an indicator. Methyl orange is then added to the above titrated solution when a further 25 mL of 0.2 N HCI is required. The amount of NaOH present in solution is (NaOH = 40,&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>N</mi><msub><mi>a</mi><mn>2</mn></msub><mi>C</mi><msub><mi>O</mi><mn>3</mn></msub><mo>&#160;</mo><mo>=</mo><mo>&#160;</mo><mn>106</mn></math>)</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-10 02:20:54', NULL),
(252271, '85,80,239,241', '<p>13.4 g of a sample of unstable hydrated salt :&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>N</mi><msub><mi>a</mi><mn>2</mn></msub><mi>S</mi><msub><mi>O</mi><mn>4</mn></msub><mo>.</mo><mi>n</mi><msub><mi>H</mi><mn>2</mn></msub><mi>O</mi></math>&nbsp;was found to contain 6.3 g of water. Determine the number of water of crystallisation.</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-10 02:22:12', NULL),
(252272, '85,80,239,241', '<p>How many molecule are present in 12 L of liquid&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>C</mi><mi>C</mi><msub><mi>l</mi><mn>4</mn></msub></math>&nbsp;?&nbsp; The density of the liquid is 1.59 g&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>c</mi><msup><mi>m</mi><mrow><mo>-</mo><mn>3</mn></mrow></msup></math>?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-10 02:24:18', NULL),
(252273, '85,80,239,241', '<p>Density of water at room temperature is 1 g/mL. How many molecules are there in a drop of water, if its volume is 0.05 mL?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-10 02:25:58', NULL),
(252274, '85,80,239,241', '<p>Molarity of liquid HCl with density equal to 1.17 g/mL is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-10 02:30:05', NULL),
(252275, '85,80,239,241', '<p>Percentage of Se in peroxidase anhydrase enzyme is 0.5% by weight (atomic mass = 78.4) then minimum molar mass of peroxides anhydrase enzyme is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-10 02:35:00', NULL),
(252276, '85,80,239,241', '<p>Which has maximum number of molecules?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-10 02:38:21', NULL),
(252277, '85,80,239,241', '<p>In Haber process 30 litres of dinitrogen and 30 litres of dinitrogen were taken for reaction which yielded only 50% of the expected product. What will be the the composition of gaseous mixture under the aforesaid condition in the end?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-10 02:41:00', NULL),
(252278, '85,80,239,241', '<p>The maximum number of molecuules is present in:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-10 16:31:18', NULL),
(252279, '85,80,239,241', '<p>The mass of carbon anode consumed (giving only carbon dioxide) in the production of 270 kg of aluminium metal from bauxite by teh Hall process is:</p>\r\n\r\n<p>(Atomic mass : Al = 27)</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-10 16:32:26', NULL),
(252280, '85,80,239,241', '<p>Concentrated aqueous sulphuric acid is 98%&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>H</mi><mn>2</mn></msub><mi>S</mi><msub><mi>O</mi><mn>4</mn></msub></math>&nbsp;by mass and has a density of 1.80 g<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>m</mi><msup><mi>l</mi><mrow><mo>-</mo><mn>1</mn></mrow></msup></math>. Volume of acid required to make one litre of 0.1 M&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>H</mi><mn>2</mn></msub><mi>S</mi><msub><mi>O</mi><mn>4</mn></msub></math>&nbsp;solution is</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-11 02:10:19', NULL),
(252281, '85,80,239,241', '<p>The ionic strength of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>N</mi><msup><mi>a</mi><mo>+</mo></msup></math>&nbsp;on mixing 100 mL 0.1 M NaCl and 100 mL 0.1&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>M</mi><mo>&#160;</mo><mi>N</mi><msub><mi>a</mi><mn>2</mn></msub><mi>S</mi><msub><mi>O</mi><mn>4</mn></msub></math>&nbsp;is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-11 02:11:20', NULL),
(252282, '85,80,239,241', '<p>What volume of oxygen gas&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mfenced><msub><mi>O</mi><mn>2</mn></msub></mfenced></math>&nbsp;measured at&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\" class=\"wrs_chemistry\"><msup><mn>0</mn><mo>&#176;</mo></msup><mi mathvariant=\"normal\">C</mi></math>&nbsp;and 1 atm, is needed to burn completely 1L of propane gas&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mfenced><mrow><msub><mi>C</mi><mn>3</mn></msub><msub><mi>H</mi><mn>8</mn></msub></mrow></mfenced></math>&nbsp;measured under the same conditions?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-11 02:12:35', NULL),
(252283, '85,80,239,241', '<p>How many moles of lead (II) chloride will be formed from a reaction between 6.5 g of PbO and 3.2 g of HCI?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-11 02:13:21', NULL),
(252284, '85,80,239,241', '<p>Volume occupied by one molecule of water (density = 1g&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>c</mi><msup><mi>m</mi><mrow><mo>-</mo><mn>3</mn></mrow></msup></math>) is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-11 02:14:58', NULL),
(252285, '85,80,239,241', '<p>An organic compound contains carbon hydrogen and oxygen. Its elemental analysis gave, C = 38.71% and H, 9.67%. The empirical formula of the compound would be:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-11 02:16:17', NULL),
(252286, '85,80,239,241', '<p>10 g of hydrogen and 64 g of oxygen were filled in a steel vessel and exploded. Amount of water produced in this reaction will be:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-11 02:17:05', NULL),
(252287, '85,80,239,241', '<p>What is the&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mfenced open=\"[\" close=\"]\"><mrow><mi>O</mi><msup><mi>H</mi><mo>-</mo></msup></mrow></mfenced></math>&nbsp;in the final solution prepared by mixing 20.0 mL of 0.050 M HCI with 30.0 mL of 0.10 M Ba<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mfenced><mrow><mi>O</mi><mi>H</mi></mrow></mfenced><mn>2</mn></msub></math>?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-11 02:19:26', NULL),
(252288, '85,80,239,241', '<p>The number of atoms in 0.1 mol of a triatomic gas is :</p>\r\n\r\n<p><math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mfenced><mrow><msub><mi>N</mi><mi>A</mi></msub><mo>&#160;</mo><mo>=</mo><mo>&#160;</mo><mn>6</mn><mo>.</mo><mn>02</mn><mo>&#160;</mo><mo>&#215;</mo><mo>&#160;</mo><msup><mn>10</mn><mn>23</mn></msup><mi>m</mi><mi>o</mi><msup><mi>l</mi><mrow><mo>-</mo><mn>1</mn></mrow></msup></mrow></mfenced></math></p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doupdate', '2025-09-11 02:23:05', NULL),
(252289, '85,80,239,241', '<p>Mole fraction of the solute in a 1.00 molal aqueious solution is:-</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-14 08:35:57', NULL),
(252290, '85,80,239,241', '<p>In a experiment it is shown that 10 mL of 0.05M solution of chloride required&nbsp; 10 mL of 0.1 M solution of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>A</mi><mi>g</mi><mi>N</mi><msub><mi>O</mi><mn>3</mn></msub></math>, which of the following will be the formula of the chloride (X stands for the symbol of the element other than chlorine):</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-14 08:38:32', NULL),
(252291, '85,80,239,241', '<p>How many grams of concentrated nitric acid solution should be used to prepare 250 mL of 2.0 M&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>H</mi><mi>N</mi><msub><mi>O</mi><mn>3</mn></msub></math>? The concentrated acid is 70% by mass&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>H</mi><mi>N</mi><msub><mi>O</mi><mn>3</mn></msub></math></p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-14 08:40:32', NULL),
(252292, '85,80,239,241', '<p>6.02&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mo>&#215;</mo><msup><mn>10</mn><mn>20</mn></msup></math>&nbsp;molecules of urea are present in 100 mL of its solution. The concentration of solution is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doupdate', '2025-09-14 08:41:26', NULL),
(252293, '85,80,239,241', '<p>Equal masses of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>H</mi><mn>2</mn></msub><mo>,</mo><mo>&#160;</mo><msub><mi>O</mi><mn>2</mn></msub></math>&nbsp;and methane have been taken in a container of volume V at temperature&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\" class=\"wrs_chemistry\"><msup><mn>27</mn><mo>&#176;</mo></msup><mi mathvariant=\"normal\">C</mi></math>&nbsp;in identical conditions. The ratio of the volumes of gases&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>H</mi><mn>2</mn></msub><mo>&#160;</mo><mo>:</mo><mo>&#160;</mo><msub><mi>O</mi><mn>2</mn></msub><mo>&#160;</mo><mo>:</mo></math>&nbsp;methane would be:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-14 08:44:11', NULL),
(252294, '85,80,239,241', '<p>When 22.4 litres of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>H</mi><mn>2</mn></msub><mo>(</mo><mi>g</mi><mo>)</mo></math>&nbsp;is mixed with 11.2 litres of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>C</mi><msub><mi>l</mi><mn>2</mn></msub><mo>(</mo><mi>g</mi><mo>)</mo></math>, each at STP, the moles of HCl(g) formed is equal to:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-14 08:45:35', NULL),
(252295, '85,80,239,241', '<p>1.0g of magnesium is burnt with 0.56g&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>O</mi><mn>2</mn></msub></math>&nbsp;in a closed vessel. Which reactant is left in excess and how much? (atomic mass Mg = 24; O = 16)</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-14 08:48:45', NULL),
(252296, '85,80,239,241', '<p>A mixture of gases contains&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>H</mi><mn>2</mn></msub><mo>&#160;</mo><mi>a</mi><mi>n</mi><mi>d</mi><mo>&#160;</mo><msub><mi>O</mi><mn>2</mn></msub></math>&nbsp;gases in the ratio of 1 : 4 (w/w). What is the molar ratio of the two gases in the mixture?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-14 08:50:35', NULL),
(252297, '85,80,239,241', '<p>20.0g of a magnesium carbonate sample decomposes on heating to give carbon dioxide and 8.0g magnesium oxide. What will be the percentage purity of magnesium carbonate in the sample? (atomic mass Mg = 24)</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-14 08:51:49', NULL),
(252298, '85,80,239,241', '<p>The number of water molecules is maximum in:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-14 08:52:35', NULL),
(252299, '85,80,239,241', '<p>What is the mole fraction of the solute in a 1.00m aqueous solution?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-14 08:53:15', NULL),
(252300, '85,80,239,241', '<p>If Avogadro number&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>N</mi><mi>A</mi></msub></math>, is changed from&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mn>6</mn><mo>.</mo><mn>022</mn><mo>&#160;</mo><mo>&#215;</mo><mo>&#160;</mo><msup><mn>10</mn><mn>23</mn></msup><mo>&#160;</mo><mi>m</mi><mi>o</mi><msup><mi>l</mi><mn>1</mn></msup><mo>&#160;</mo><mi>t</mi><mi>o</mi><mo>&#160;</mo><mn>6</mn><mo>.</mo><mn>022</mn><mo>&#160;</mo><mo>&#215;</mo><mo>&#160;</mo><msup><mn>10</mn><mn>20</mn></msup><mo>&#160;</mo><mi>m</mi><mi>o</mi><msup><mi>l</mi><mrow><mo>-</mo><mn>1</mn></mrow></msup></math>&nbsp;this would change:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-14 08:55:08', NULL),
(252301, '85,80,239,241', '<p>What is the mass of precipitate formed when 50 mL of 16.9% solution of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>A</mi><mi>g</mi><mi>N</mi><msub><mi>O</mi><mn>3</mn></msub></math>&nbsp;is mixed with 50 mL of 5.8% NaCl solution?</p>\r\n\r\n<p>(Ag = 107.8, N = 14, O = 16, N = 23, Cl = 35.5)</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-14 08:56:29', NULL),
(252302, '85,80,239,241', '<p>Suppose the elements X and Y combine to form two compounds&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>X</mi><msub><mi>Y</mi><mn>2</mn></msub><mo>&#160;</mo><mi>a</mi><mi>n</mi><mi>d</mi><mo>&#160;</mo><msub><mi>X</mi><mn>3</mn></msub><msub><mi>Y</mi><mn>2</mn></msub></math>. When 0.1 mole of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>X</mi><msub><mi>Y</mi><mn>2</mn></msub></math>&nbsp;weighs 10g and 0.05 mole of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>X</mi><mn>3</mn></msub><msub><mi>Y</mi><mn>2</mn></msub></math>&nbsp;weighs 9g, the atomic weights of X and Y are:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-14 08:58:00', NULL),
(252303, '85,80,239,241', '<p>Which of the following is dependent on temperature?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-14 08:58:34', NULL),
(252304, '85,80,239,241', '<p>A mixture of 2.3g formic acid and 4.5g oxalic acid is treated with conc.&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>H</mi><mn>2</mn></msub><mi>S</mi><msub><mi>O</mi><mn>4</mn></msub></math>. The evolved gaseous mixture is passed through KOH pellets. Weight (in g) of the remaining product at STP will be:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-14 08:59:55', NULL),
(252305, '85,80,239,241', '<p>In which case numebr of molecules of water is maximum?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-14 09:00:56', NULL),
(252306, '85,80,239,241', '<p>The method used to remove temporary hardness of water is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-14 09:02:11', NULL),
(252307, '85,80,239,241', '<p>The number of moles of hydrogen molecules required to produce 20 moles of ammonia through Haber&#39;s process is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-14 09:02:50', NULL),
(252308, '85,80,239,241', '<p>The density of 2 M aqueious solution of NaOH is 1.28 g/<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>c</mi><msup><mi>m</mi><mn>3</mn></msup></math>. The molality of the solution is:</p>\r\n\r\n<p>(Given that molecular mass of NaOH = 40g&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>m</mi><mi>o</mi><msup><mi>l</mi><mrow><mo>-</mo><mn>1</mn></mrow></msup></math>)</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-14 09:04:09', NULL),
(252309, '86,80,205,239,1742', '<p>A bullet fired into a fixed target loses half of its velocity after penetrating 3cm. How much further it will penetrate (in cm) before coming to rest assuming that it faces constant resistance to motion?</p>', 'Medium', 'textarea', '<p>1</p>', 1, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-15 06:04:59', NULL),
(252310, '86,80,205,239,1742', '<p>A body of mass 4 kg is placed on a plane at a point P having coordinate (3, 4) metre . Under the action of force<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>F</mi><mo>=</mo><mfenced><mrow><mo>&#160;</mo><mn>2</mn><mover><mi>i</mi><mo>^</mo></mover><mo>+</mo><mn>3</mn><mover><mi>j</mi><mo>^</mo></mover><mo>&#160;</mo></mrow></mfenced><mo>&#160;</mo><mi>N</mi></math>&nbsp;, it moves to a new point Q having coordinates (6,10) metre&nbsp; in 4 sec . The average power and instanteous power at the end of 4 sec are in the ratio of M/13. The Value of M is</p>', 'Medium', 'textarea', '<p>6</p>', 1, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-15 06:08:39', NULL),
(252311, '86,80,205,239,1742', '<p>A body of mass 3 kg is under a force, which causes a displacement in it is given by&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mo>&#160;</mo><mi>S</mi><mo>&#160;</mo><mo>=</mo><mo>&#160;</mo><mfrac><msup><mi>t</mi><mn>2</mn></msup><mn>4</mn></mfrac></math>&nbsp;(in m). Find the work done (in J) by the force in first 2 seconds</p>', 'Medium', 'textarea', '<p>3</p>', 3, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-15 06:14:23', NULL);
INSERT INTO `questions` (`id`, `category_id`, `question`, `question_type`, `answer_type`, `subjective_ans`, `marks`, `time`, `added_by`, `status`, `current_url`, `created_at`, `updated_at`) VALUES
(252312, '86,80,205,239,1742', '<p>A particle slides along a track with elevanted ends a flat central part as shown in the figure. The flat part has a length l = 3m. The curved portions of the track are frictionaless. For the flat part the coefficient of kinetic friction is&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>&#956;</mi><mi>k</mi></msub></math>&nbsp;= 0.2. The particle is released at point A which is at height h = 1.5m ab ove the flat part of the track. Where does the particle finally come to rest?</p>\r\n\r\n<p><img alt=\"\" src=\"https://school.achievam.com/upload/questionbank/question/que_1757917062.png\" style=\"height:120px; width:189px\" /></p>', 'Medium', 'textarea', '<p>1.5 metre</p>', 3, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-15 06:18:13', NULL),
(252313, '86,80,205,239,1742', '<p>A bullet when fired at a target with a velocity of 100&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>m</mi><msup><mi>s</mi><mrow><mo>-</mo><mn>1</mn></mrow></msup></math>, penetrates one metre into it. If the bullet is fired with the same velocity at a simple target with a thickness 0.5 metre, then it will emerge from it with a velocity of&nbsp;</p>', 'Medium', 'textarea', '<p><math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mn>50</mn><msqrt><mn>2</mn></msqrt><mo>&#160;</mo><mi>m</mi><msup><mi>s</mi><mrow><mo>-</mo><mn>1</mn></mrow></msup></math></p>', 3, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-15 06:20:43', NULL),
(252314, '86,80,205,239', '<p>A bullet when find at a target with a velocity of 100&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>m</mi><msup><mi>s</mi><mrow><mo>-</mo><mn>1</mn></mrow></msup></math>,&nbsp;penetrates one metre into it. If the bullet is fired with the same velocity at a simple target with a thickness 0.5 metre, then it will emerge from it with a velocity of&nbsp;</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-15 06:22:01', NULL),
(252315, '86,80,205,239,1742', '<p>A block is simply released from the top of an inclined plane as shown in the figure above. The maximum compression in the spring when the block hits the spring is :</p>\r\n\r\n<p><img alt=\"\" src=\"https://school.achievam.com/upload/questionbank/question/que_1757917305.jpg\" style=\"height:120px; width:278px\" /></p>', 'Medium', 'textarea', '<p>2</p>', 1, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-15 06:22:13', NULL),
(252316, '86,80,205,239,1742', '<p>A body of mass 3 kg is under a force, which causes a displacement in it is given by&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>S</mi><mo>&#160;</mo><mo>=</mo><mo>&#160;</mo><mfrac><msup><mi>t</mi><mn>2</mn></msup><mn>4</mn></mfrac></math>&nbsp;(in m). Find the work done (in J) by the force in first 2 seconds.</p>', 'Medium', 'textarea', '<p>1.5</p>', 3, 1, 1, 1, 'https://school.achievam.com/panel/question/doupdate', '2025-09-15 06:23:36', NULL),
(252317, '82,78', '<p>Climate change has emerged as one of the greatest challenges of the 21st century. Rising global temperatures, melting glaciers, and unpredictable weather patterns are clear indicators of its impact. Scientists warn that if immediate steps are not taken, the earth may face severe consequences such as frequent floods, droughts, and loss of biodiversity. Human activities, especially the burning of fossil fuels, deforestation, and industrial pollution, are the main contributors to this crisis. While international agreements like the Paris Accord aim to reduce carbon emissions, success largely depends on the collective efforts of all nations. Individuals also play a crucial role by adopting eco-friendly habits such as using renewable energy, reducing plastic use, and conserving water. Protecting the planet is no longer an option but a necessity for the survival of future generations.</p>\r\n\r\n<p>Multiple Choice Questions</p>\r\n\r\n<p>1. What is described as one of the greatest challenges of the 21st century?<br />\r\na) Deforestation<br />\r\nb) Pollution<br />\r\nc) Climate change<br />\r\nd) Poverty</p>\r\n\r\n<p>2. Which of the following is NOT mentioned as an impact of climate change?<br />\r\na) Melting glaciers<br />\r\nb) Frequent floods<br />\r\nc) Increased biodiversity<br />\r\nd) Droughts</p>\r\n\r\n<p>3. According to the passage, what mainly contributes to climate change?<br />\r\na) Solar energy<br />\r\nb) Human activities<br />\r\nc) Ocean currents<br />\r\nd) Natural disasters</p>\r\n\r\n<p><br />\r\n4. What do scientists warn will happen if no immediate steps are taken?<br />\r\na) Industrial growth will stop<br />\r\nb) Earth will face severe consequences<br />\r\nc) Population will decline<br />\r\nd) Technology will fail</p>\r\n\r\n<p>5. The Paris Accord is an agreement aimed at:<br />\r\na) Promoting trade among nations<br />\r\nb) Reducing carbon emissions<br />\r\nc) Stopping wars<br />\r\nd) Encouraging tourism</p>\r\n\r\n<p>6. Success in fighting climate change depends on:<br />\r\na) Only developing nations<br />\r\nb) Only scientists and researchers<br />\r\nc) Collective efforts of all nations<br />\r\nd) Natural forces</p>\r\n\r\n<p>7. Individuals can contribute to protecting the planet by:<br />\r\na) Using more plastic<br />\r\nb) Burning fossil fuels<br />\r\nc) Adopting eco-friendly habits<br />\r\nd) Cutting more trees</p>\r\n\r\n<p>8. The phrase &ldquo;Protecting the planet is no longer an option but a necessity&rdquo; means:<br />\r\na) Protecting the planet is optional<br />\r\nb) Protecting the planet is not important<br />\r\nc) Protecting the planet is compulsory for survival<br />\r\nd) Protecting the planet is only for scientists</p>\r\n\r\n<p>9. Which of the following is an example of eco-friendly action mentioned in the passage?<br />\r\na) Using renewable energy<br />\r\nb) Expanding industries<br />\r\nc) Mining more coal<br />\r\nd) Building more factories</p>\r\n\r\n<p>10. The tone of the passage can be best described as:<br />\r\na) Informative and cautionary<br />\r\nb) Humorous and casual<br />\r\nc) Angry and negative<br />\r\nd) Doubtful&nbsp;and&nbsp;unclear<br />\r\n&nbsp;</p>', 'Medium', 'textarea', '<p>na</p>', 1, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-15 07:30:54', NULL),
(252318, '85,80,239,256,1742', '<p>The number of spcies from the following that have pyramidal geometry around the central atom is............</p>\r\n\r\n<p><math class=\"wrs_chemistry\" xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi mathvariant=\"normal\">S</mi><mn>2</mn></msub><msubsup><mi mathvariant=\"normal\">O</mi><mn>3</mn><mrow><mn>2</mn><mo>-</mo></mrow></msubsup><mo>,</mo><mo>&#160;</mo><msubsup><mi>SO</mi><mn>4</mn><mrow><mn>2</mn><mo>-</mo></mrow></msubsup><mo>,</mo><mo>&#160;</mo><msubsup><mi>SO</mi><mn>3</mn><mrow><mn>2</mn><mo>-</mo></mrow></msubsup><mo>,</mo><mo>&#160;</mo><msub><mi mathvariant=\"normal\">S</mi><mn>2</mn></msub><msubsup><mi mathvariant=\"normal\">O</mi><mn>7</mn><mrow><mn>2</mn><mo>-</mo></mrow></msubsup></math></p>', 'Medium', 'textarea', '<p>na</p>', 3, 1, 129, 1, 'https://school.achievam.com/quser/questions/doupdate', '2025-09-15 08:08:44', NULL),
(252319, '85,80,239,256,1742', '<p>The number of non-planar molecules from the following is________</p>\r\n\r\n<p><math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>H</mi><mi>F</mi><mo>,</mo><mo>&#160;</mo><msub><mi>H</mi><mn>2</mn></msub><mi>O</mi><mo>,</mo><mo>&#160;</mo><mi>S</mi><msub><mi>O</mi><mn>2</mn></msub><mo>,</mo><mo>&#160;</mo><msub><mi>H</mi><mn>2</mn></msub><mo>,</mo><mo>&#160;</mo><mi>C</mi><msub><mi>O</mi><mn>2</mn></msub><mo>,</mo><mo>&#160;</mo><mi>C</mi><msub><mi>H</mi><mn>4</mn></msub><mo>,</mo><mo>&#160;</mo><mi>N</mi><msub><mi>H</mi><mn>3</mn></msub><mo>,</mo><mo>&#160;</mo><mi>H</mi><mi>C</mi><msub><mi>l</mi><mo>,</mo></msub><mo>&#160;</mo><mi>C</mi><mi>H</mi><mi>C</mi><msub><mi>l</mi><mn>3</mn></msub><mo>,</mo><mo>&#160;</mo><mi>B</mi><msub><mi>F</mi><mn>3</mn></msub></math></p>', 'Medium', 'textarea', '<p>na</p>', 3, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-15 08:18:55', NULL),
(252320, '85,80,239,256,1742', '<p>The total number of molecules with zero dipole moment among&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\" class=\"wrs_chemistry\"><msub><mi>CH</mi><mn>4</mn></msub><mo>,</mo><mo>&#160;</mo><msub><mi>BF</mi><mn>3</mn></msub><mo>,</mo><mo>&#160;</mo><msub><mi mathvariant=\"normal\">H</mi><mn>2</mn></msub><mi mathvariant=\"normal\">O</mi><mo>,</mo><mo>&#160;</mo><mi>HF</mi><mo>,</mo><mo>&#160;</mo><msub><mi>NH</mi><mn>3</mn></msub><mo>,</mo><mo>&#160;</mo><msub><mi>CO</mi><mn>2</mn></msub><mo>&#160;</mo><mi>and</mi><mo>&#160;</mo><msub><mi>SO</mi><mn>2</mn></msub></math>&nbsp;is________</p>', 'Medium', 'textarea', '<p>na</p>', 3, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-15 08:19:52', NULL),
(252321, '85,80,239,256,1742', '<p>A diatomic molecule has a dipole moment of 1.2D. If the bond distance is 1<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msup><mi>A</mi><mo>&#8728;</mo></msup></math>, then fractional charge on each atom is________<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mo>&#215;</mo><msup><mn>10</mn><mrow><mo>-</mo><mn>1</mn></mrow></msup><mo>&#160;</mo><mi>e</mi><mi>s</mi><mi>u</mi><mo>.</mo><mo>&#160;</mo></math>&nbsp;(Given 1D =&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msup><mn>10</mn><mrow><mo>-</mo><mn>18</mn></mrow></msup></math>&nbsp;esucm)</p>', 'Medium', 'textarea', '<p>na</p>', 3, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-15 08:21:15', NULL),
(252322, '85,80,239,256,1742', '<p>Total number of species from the following with central atom utilising&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>s</mi><msup><mi>p</mi><mn>2</mn></msup></math>&nbsp;hybrid orbitals for bonding is_______</p>\r\n\r\n<p><math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>N</mi><msub><mi>H</mi><mn>3</mn></msub><mo>,</mo><mo>&#160;</mo><mi>S</mi><msub><mi>O</mi><mn>2</mn></msub><mo>,</mo><mo>&#160;</mo><mi>S</mi><mi>i</mi><msub><mi>O</mi><mn>2</mn></msub><mo>,</mo><mo>&#160;</mo><mi>B</mi><mi>e</mi><mi>C</mi><msub><mi>l</mi><mn>2</mn></msub><mo>,</mo><mo>&#160;</mo><msub><mi>C</mi><mn>2</mn></msub><msub><mi>H</mi><mn>2</mn></msub><mo>,</mo><mo>&#160;</mo><msub><mi>C</mi><mn>2</mn></msub><msub><mi>H</mi><mn>4</mn></msub><mo>,</mo><mo>&#160;</mo><mi>B</mi><mi>C</mi><msub><mi>l</mi><mn>3</mn></msub><mo>,</mo><mo>&#160;</mo><mi>H</mi><mi>C</mi><mi>H</mi><mi>O</mi><mo>,</mo><mo>&#160;</mo><msub><mi>C</mi><mn>6</mn></msub><msub><mi>H</mi><mn>6</mn></msub><mo>,</mo><mo>&#160;</mo><mi>B</mi><msub><mi>F</mi><mn>3</mn></msub><mo>,</mo><mo>&#160;</mo><msub><mi>C</mi><mn>2</mn></msub><msub><mi>H</mi><mn>4</mn></msub><mi>C</mi><msub><mi>l</mi><mn>2</mn></msub></math></p>', 'Medium', 'textarea', '<p>na</p>', 3, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-15 08:23:05', NULL),
(252323, '85,80,239,241,1742', '<p>A g of titanium (at. wt. 48) reacts with&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>C</mi><msub><mi>l</mi><mn>2</mn></msub></math>&nbsp;to give 3.21875g compound. The valence of titanium is......&nbsp;</p>', 'Medium', 'textarea', '<p>three</p>', 3, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-16 10:22:38', NULL),
(252324, '85,80,239,241,1742', '<p>A reaction requires two atoms of P for five atoms of O. The amount in g of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>O</mi><mn>2</mn></msub></math>&nbsp;required for 3.10g P :</p>', 'Medium', 'textarea', '<p>Four</p>', 3, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-16 10:23:21', NULL),
(252325, '85,80,239,241,1742', '<p>A mixture of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>C</mi><mn>2</mn></msub><msub><mi>H</mi><mn>4</mn></msub></math>&nbsp;and&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>H</mi><mn>2</mn></msub></math>&nbsp;(in excess) has a pressure of 60 cm Hg. The mixture on passing over Ni catalyst gives:&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>C</mi><mn>2</mn></msub><msub><mi>H</mi><mn>4</mn></msub><mo>(</mo><mi>g</mi><mo>)</mo><mo>&#160;</mo><mo>+</mo><mo>&#160;</mo><msub><mi>H</mi><mn>2</mn></msub><mo>(</mo><mi>g</mi><mo>)</mo><mo>&#160;</mo><mo>&#8594;</mo><mo>&#160;</mo><msub><mi>C</mi><mn>2</mn></msub><msub><mi>H</mi><mn>6</mn></msub><mo>(</mo><mi>g</mi><mo>)</mo></math>. The resultant pressure of mixture after completion of reaction at same T and V is 40 cm Hg. The ratio of mole of fraction of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>H</mi><mn>2</mn></msub></math>&nbsp;and&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>C</mi><mn>2</mn></msub><msub><mi>H</mi><mn>4</mn></msub></math>&nbsp;in original mixture are.........</p>', 'Medium', 'textarea', '<p>two</p>', 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-16 10:25:44', NULL),
(252326, '85,80,239,241,1742', '<p>Haemoglobin contains 0.25% iron by weight. The molecular weight of haemoglobin is 89600. Number of iron atoms present in one mole of haemoglobin are......</p>', 'Medium', 'textarea', '<p>four</p>', 3, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-16 10:26:39', NULL),
(252327, '85,80,239,241,1742', '<p>A gaseous alkane&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>C</mi><mi>n</mi></msub><msub><mi>H</mi><mrow><mn>2</mn><mi>n</mi><mo>+</mo><mn>2</mn></mrow></msub></math>&nbsp;an explosion with&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>O</mi><mn>2</mn></msub></math>&nbsp;gives&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>C</mi><msub><mi>O</mi><mn>2</mn></msub></math>. The volume of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>O</mi><mn>2</mn></msub></math>&nbsp;required for complete combustion of alkane to&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>C</mi><msub><mi>O</mi><mn>2</mn></msub></math>&nbsp;formed is 7 : 4. The value of n is........</p>', 'Medium', 'textarea', '<p>Two</p>', 3, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-16 10:28:05', NULL),
(252328, '85,80,239,241,1742', '<p>Compound&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>S</mi><mn>4</mn></msub><msub><mi>N</mi><mn>4</mn></msub></math>&nbsp;decompose completely into&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>S</mi><mi>X</mi></msub><mo>(</mo><mi>g</mi><mo>)</mo></math>&nbsp;and&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>N</mi><mn>2</mn></msub><mo>(</mo><mi>g</mi><mo>)</mo></math>. If all measurements are made of same P and T each volume of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>S</mi><mn>4</mn></msub><msub><mi>N</mi><mn>4</mn></msub></math>&nbsp;gives 4.0 volume of gaeous product. The value of X is........</p>', 'Medium', 'textarea', '<p>two</p>', 3, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-16 10:30:00', NULL),
(252329, '85,80,239,241,1742', '<p>0.98g of a polybasic acid (mol. wt. 98) requires 30 mL of 0.5 M Ba<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mfenced><mrow><mi>O</mi><mi>H</mi></mrow></mfenced><mn>2</mn></msub></math>&nbsp;for complete neutralisation. The basicity of acid is.............</p>', 'Medium', 'textarea', '<p>Three</p>', 3, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-16 10:30:58', NULL),
(252330, '85,80,239,241,1742', '<p>A solution of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>H</mi><mn>2</mn></msub><msub><mi>O</mi><mn>2</mn></msub></math>&nbsp;has normality&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mfrac><mi>N</mi><mrow><mn>1</mn><mo>.</mo><mn>7</mn></mrow></mfrac></math>. Its % strength is..............</p>', 'Medium', 'textarea', '<p>One</p>', 3, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-16 10:31:35', NULL),
(252331, '85,80,239,241,1742', '<p>Number of water molecules attached on&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>C</mi><msup><mi>u</mi><mrow><mn>2</mn><mo>+</mo></mrow></msup></math>&nbsp;ion in&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>C</mi><mi>u</mi><mi>S</mi><msub><mi>O</mi><mn>4</mn></msub><mo>&#160;</mo><mo>.</mo><mo>&#160;</mo><mn>5</mn><msub><mi>H</mi><mn>2</mn></msub><mi>O</mi><mo>&#160;</mo><mi>i</mi><mi>s</mi></math>...............</p>', 'Medium', 'textarea', '<p>Four</p>', 3, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-16 10:32:32', NULL),
(252332, '85,80,239,241,1742', '<p>Number of water molecules present in Mohr&#39;s salt is.............</p>', 'Medium', 'textarea', '<p>Six</p>', 3, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-16 10:33:00', NULL),
(252333, '85,80,239,241,1742', '<p>&#39;n&#39; factor for potash alum is...........</p>', 'Medium', 'textarea', '<p>eight</p>', 3, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-16 10:33:32', NULL),
(252334, '85,80,239,241,1742', '<p>A student performs a titration with different burettes and finds titre value of 25.2 mL, 25.25 mL, 25.0 mL. The number of significant figures in the average titre value is...........</p>', 'Medium', 'textarea', '<p>three</p>', 3, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-16 10:34:50', NULL),
(252335, '85,80,239,241,1742', '<p>The volume (in mL) of 0.10 M&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>A</mi><mi>g</mi><mi>N</mi><msub><mi>O</mi><mn>3</mn></msub></math>&nbsp;required for complete precipitation of chlrode ions present in 30 mL of 0.01 M solution of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mfenced open=\"[\" close=\"]\"><mrow><mi>C</mi><mi>r</mi><msub><mrow><mo>(</mo><msub><mi>H</mi><mn>2</mn></msub><mi>O</mi><mo>)</mo></mrow><mn>5</mn></msub><mi>C</mi><mi>l</mi><mo>)</mo><mi>C</mi><msub><mi>l</mi><mn>2</mn></msub></mrow></mfenced></math>&nbsp;as silver chloride is close to...........</p>', 'Medium', 'textarea', '<p>six</p>', 3, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-16 10:36:35', NULL),
(252336, '85,80,239,241,1742', '<p>29.2% (w/w) HCl stock solution has a density of 1.25g&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>m</mi><msup><mi>L</mi><mrow><mo>-</mo><mn>1</mn></mrow></msup></math>. The molecular weight of HCl is 36.5 g&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>m</mi><mi>o</mi><msup><mi>l</mi><mrow><mo>-</mo><mn>1</mn></mrow></msup></math>. The volume (mL) of stock required to prepare a 200 mL solution of 0.4 M HCl is:</p>', 'Medium', 'textarea', '<p>eight</p>', 3, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-16 10:37:54', NULL),
(252337, '85,80,239,241,1742', '<p>The mole fraction of a solute in a solution is 0.1. At 298 K, molarity of this solution is the same as its molality. Density of this solution at 298 K is 2.0g&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>c</mi><msup><mi>m</mi><mrow><mo>-</mo><mn>3</mn></mrow></msup></math>. The ratio of the molecular weights of the solute and solvent,&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mfenced><mfrac><mrow><mi>M</mi><msub><mi>W</mi><mrow><mi>s</mi><mi>o</mi><mi>l</mi><mi>u</mi><mi>t</mi><mi>e</mi></mrow></msub></mrow><mrow><mi>M</mi><msub><mi>W</mi><mrow><mi>s</mi><mi>o</mi><mi>l</mi><mi>v</mi><mi>e</mi><mi>n</mi><mi>t</mi></mrow></msub></mrow></mfrac></mfenced><mo>&#160;</mo><mi>i</mi><mi>s</mi><mo>:</mo></math></p>', 'Medium', 'textarea', '<p>nine</p>', 3, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-16 10:41:21', NULL),
(252338, '85,80,239,241', '<p>The normality of 0.3 M phosphorous acid&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mfenced><mrow><msub><mi>H</mi><mn>3</mn></msub><mi>P</mi><msub><mi>O</mi><mn>3</mn></msub></mrow></mfenced></math>&nbsp;is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-16 10:44:37', NULL),
(252339, '85,80,239,241', '<p>An aqueous solution of 6.3g oxalic acid dihydrate is made up to 250 mL. The volume of 0.1 N NaOH required to completely neutralised 10 mL of this solution is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-16 10:45:45', NULL),
(252340, '85,80,239,241', '<p>How many moles of electrons weigh one kilogram?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-16 10:47:05', NULL),
(252341, '85,80,239,241', '<p>In a compound C, H, N atoms are present in 9 : 1 : 3.5 by weight. Molecular weight of compound is 108, its molecular formula is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-16 10:48:28', NULL),
(252342, '85,80,239,241', '<p>Which of the followings changes with increase in temperature?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-16 10:49:06', NULL),
(252343, '85,80,239,241', '<p>The number of atoms in 558.5g of Fe (at. wt. 55.85) is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-16 10:50:12', NULL),
(252344, '85,80,239,241', '<p>What volume of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>H</mi><mn>2</mn></msub></math>&nbsp;at 273 K and 1 atm will be consumed in obtaining 21.6g of elemental boron (at. mass 10.8) from the reduction of boron trichloride with&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>H</mi><mn>2</mn></msub></math>?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-16 10:51:18', NULL),
(252345, '85,80,239,241', '<p>Which has maximum number of atoms?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-16 10:52:07', NULL),
(252346, '85,80,239,241', '<p><math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>H</mi><mn>3</mn></msub><mi>B</mi><msub><mi>O</mi><mn>3</mn></msub></math>&nbsp;is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-16 10:53:04', NULL),
(252347, '85,80,239,241', '<p>A mixture X containing 0.02 mol of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mfenced open=\"[\" close=\"]\"><mrow><mi>C</mi><mi>o</mi><msub><mfenced><mrow><mi>N</mi><msub><mi>H</mi><mn>3</mn></msub></mrow></mfenced><mn>5</mn></msub><mi>S</mi><msub><mi>O</mi><mn>4</mn></msub></mrow></mfenced></math>&nbsp;Br and 0.02 mol of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mfenced open=\"[\" close=\"]\"><mrow><mi>C</mi><mi>o</mi><msub><mrow><mo>(</mo><mi>N</mi><msub><mi>H</mi><mn>3</mn></msub><mo>)</mo></mrow><mn>5</mn></msub><mo>&#160;</mo><mi>B</mi><mi>r</mi></mrow></mfenced><mi>S</mi><msub><mi>O</mi><mn>4</mn></msub></math>&nbsp;was prepared in 2 L of solution.</p>\r\n\r\n<p>1 L of mixture X + excess&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>A</mi><mi>g</mi><mi>N</mi><msub><mi>O</mi><mn>3</mn></msub><mo>&#160;</mo><mo>&#8594;</mo><mi>Y</mi></math></p>\r\n\r\n<p>1 L of mixture X + excess&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>B</mi><mi>a</mi><mi>C</mi><msub><mi>l</mi><mn>2</mn></msub><mo>&#160;</mo><mo>&#8594;</mo><mo>&#160;</mo><mi>Z</mi></math></p>\r\n\r\n<p>The number of moles of Y and Z are:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-16 10:55:50', NULL),
(252348, '85,80,239,241', '<p><math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mn>6</mn><mo>.</mo><mn>02</mn><mo>&#160;</mo><mo>&#215;</mo><mo>&#160;</mo><msup><mn>10</mn><mn>20</mn></msup></math>&nbsp;molecules of urea are present in 100 mL of its solution. The molarity of urea solution is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-17 06:54:49', NULL),
(252349, '85,80,239,241', '<p>The neutralise completely 20 mL of 0.1 M aqueous solution of phosphorous acid&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mfenced><mrow><msub><mi>H</mi><mn>3</mn></msub><mi>P</mi><msub><mi>O</mi><mn>3</mn></msub></mrow></mfenced></math>, the volume of 0.1 M aqueous KOH solution required is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-17 06:56:02', NULL),
(252350, '85,80,239,241', '<p>25 mL of a solution of barium hydroxide on titration with 0.1 M solution of HCI gave a titre value of 35 mL. The molarity of Ba<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mfenced><mrow><mi>O</mi><mi>H</mi></mrow></mfenced><mn>2</mn></msub></math>&nbsp;is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-17 06:57:15', NULL),
(252351, '85,80,239,241', '<p>Two solution of a substance (non-electrolyte) are mixed in the following manner. 480mL of 1.5 M of 1 solution with 520 mL of 1.2 M of II solution. The molarity of final solution is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-17 06:58:22', NULL),
(252352, '85,80,239,241', '<p>If 1/6 in place of 1/12 mass of carbon atom is taken to be the relative atomi mass unit, the mass of one mole of a substance will:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-17 08:40:28', NULL),
(252353, '85,80,239,241', '<p>Density of a 2.05 M solution of acetic acid in water is 1.02 g/mL. The molality of the solution is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-17 08:49:29', NULL),
(252354, '85,80,239,241', '<p>How many moles of magnesium phosphate,&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>M</mi><msub><mi>g</mi><mn>3</mn></msub><msub><mrow><mo>(</mo><mi>P</mi><msub><mi>O</mi><mn>4</mn></msub><mo>)</mo></mrow><mn>2</mn></msub></math>&nbsp;will contain 0.25 mole of oxygen atoms?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-17 08:50:38', NULL),
(252355, '85,80,239,241', '<p>The density (in g&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>m</mi><msup><mi>L</mi><mrow><mo>-</mo><mn>1</mn></mrow></msup></math>) of a 3.60 M&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>H</mi><mn>2</mn></msub><mi>S</mi><msub><mi>O</mi><mn>4</mn></msub></math>&nbsp;solution having 29% by mass of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>H</mi><mn>2</mn></msub><mi>S</mi><msub><mi>O</mi><mn>4</mn></msub></math>&nbsp;(molar mass 98) will be:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-17 08:51:50', NULL),
(252356, '85,80,239,241', '<p>In the reaction:</p>\r\n\r\n<p><math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mn>2</mn><mi>A</mi><mi>l</mi><mo>(</mo><mi>s</mi><mo>)</mo><mo>&#160;</mo><mo>+</mo><mo>&#160;</mo><mn>6</mn><mi>H</mi><mi>C</mi><mi>l</mi><mo>(</mo><mi>a</mi><mi>q</mi><mo>.</mo><mo>)</mo><mo>&#160;</mo><mo>&#8594;</mo><mo>&#160;</mo><mn>2</mn><mi>A</mi><msup><mi>l</mi><mrow><mn>3</mn><mo>+</mo></mrow></msup><mo>(</mo><mi>a</mi><mi>q</mi><mo>.</mo><mo>)</mo><mo>&#160;</mo><mo>+</mo><mo>&#160;</mo><mn>6</mn><mi>C</mi><msup><mi>l</mi><mo>+</mo></msup><mo>(</mo><mi>a</mi><mi>q</mi><mo>.</mo><mo>)</mo><mo>&#160;</mo><mo>+</mo><mo>&#160;</mo><mn>3</mn><msub><mi>H</mi><mn>2</mn></msub><mo>(</mo><mi>g</mi><mo>)</mo></math></p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-17 08:57:01', NULL),
(252357, '85,80,239,241', '<p>The molality of a urea solution in which 0.0100g of urea,&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mfenced open=\"[\" close=\"]\"><mrow><msub><mfenced><mrow><mi>N</mi><msub><mi>H</mi><mn>2</mn></msub></mrow></mfenced><mn>2</mn></msub><mi>C</mi><mi>O</mi></mrow></mfenced></math>&nbsp;is present in 0.3000&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>d</mi><msup><mi>m</mi><mn>3</mn></msup></math>&nbsp;of solution</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-17 08:59:16', NULL),
(252358, '85,80,239,241', '<p>Dissolving 120 g of urea (mol. wt. 60) in 1000g of water gave a solution of density 1.15 g/mlL. The molarity of the solution is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-17 09:00:13', NULL),
(252359, '85,80,239,241', '<p>A gaseous hydrocarbon gives upon combustion 0.72g of water and 3.08g of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>C</mi><msub><mi>O</mi><mn>2</mn></msub></math>. The empirical formula of the hydrocarbon is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-17 09:02:21', NULL),
(252360, '85,80,239,241', '<p>The molality of a solution obtained by mixing 750 mL of 0.5 M HCl with 250 mL of 2 M HCl will be:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-17 09:04:26', NULL),
(252361, '85,80,239,241', '<p>A compound with molar mass 180 is acylated with&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>C</mi><msub><mi>H</mi><mn>3</mn></msub><mi>C</mi><mi>O</mi><mi>C</mi><mi>l</mi></math>&nbsp;to get a compound with molar mass 390. The number of amino groups present per molecule of the former compound is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-17 09:10:32', NULL),
(252362, '85,80,239,241', '<p>A compound&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>H</mi><mn>2</mn></msub><mi>X</mi></math>&nbsp;with molar weight of 80g is dissolved in a solvent having density of 0.4&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>g</mi><mi>m</mi><msup><mi>L</mi><mrow><mo>-</mo><mn>1</mn></mrow></msup></math>. Assuming no change in volume upon dissolution, the molality of a 3.2 molar solution is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-17 09:14:46', NULL),
(252363, '85,80,239,241', '<p>The ratio of masses of oxygen and nitrogen in a particular gaseous mixture is 1 : 4. The ratio of number of their molecule is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-17 09:15:39', NULL),
(252364, '85,80,239,241', '<p>The molecular formula of a commercial resin used for exchanging ions in water softening is&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>C</mi><mn>8</mn></msub><msub><mi>H</mi><mn>7</mn></msub><mi>S</mi><msub><mi>O</mi><mn>3</mn></msub></math>&nbsp;Na (Mol. Wt. 206), What would be the maximum uptake of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>C</mi><msup><mi>a</mi><mrow><mn>2</mn><mo>+</mo></mrow></msup></math>&nbsp;ions by the resin when expressed in mole per gram resin?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-17 09:18:24', NULL),
(252365, '85,80,239,241', '<p>At 300 K and 1 atm, 15 mL of a gaseoud hydrocarbon requires 375 mL air containing 20%&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>O</mi><mn>2</mn></msub></math>&nbsp;by volume for complete combustion. After combustion the gases occupy 330 mL. Assuming that the water formed is in liquid form and the volumes were measured at the same temperature and pressure, the formula of the hydrocarbon is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-17 09:23:07', NULL),
(252366, '85,80,239,241', '<p>The most abundant elements by mass in the body of a healthy human adult are:</p>\r\n\r\n<p>Oxygen (61.4%); Carbon (22.9%); Hydrogen (10.0%) and Nitrogen (2.6%)</p>\r\n\r\n<p>The weight which is 75 kg peson would gain if all&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\" class=\"wrs_chemistry\"><mmultiscripts><mi mathvariant=\"normal\">H</mi><mprescripts/><mrow/><mn>1</mn></mmultiscripts></math>&nbsp;atoms are replaced by&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\" class=\"wrs_chemistry\"><mmultiscripts><mi mathvariant=\"normal\">H</mi><mprescripts/><mrow/><mn>2</mn></mmultiscripts></math>&nbsp;atoms is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-17 09:24:39', NULL),
(252367, '85,80,239,241', '<p>On treatment of 100 mL of 0.1 M solution of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>C</mi><mi>o</mi><mi>C</mi><msub><mi>l</mi><mn>3</mn></msub><mo>.</mo><mn>6</mn><msub><mi>H</mi><mn>2</mn></msub><mi>O</mi></math>&nbsp;with excess&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>A</mi><mi>g</mi><mi>N</mi><msub><mi>O</mi><mn>3</mn></msub></math>&nbsp;; 1.2&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mo>&#215;</mo><mo>&#160;</mo><msup><mn>10</mn><mn>22</mn></msup></math>&nbsp;ions are precipitated. The complex is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-17 09:28:21', NULL),
(252368, '85,80,239,241', '<p>1 gram of a carbonate&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mfenced><mrow><msub><mi>M</mi><mn>2</mn></msub><mi>C</mi><msub><mi>O</mi><mn>3</mn></msub></mrow></mfenced></math>&nbsp;on treatment with excess HCl produces 0.01186 mole of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>C</mi><msub><mi>O</mi><mn>2</mn></msub></math>. The molar mass of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>M</mi><mn>2</mn></msub><mi>C</mi><msub><mi>O</mi><mn>3</mn></msub></math>&nbsp;in g&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>m</mi><mi>o</mi><msup><mi>l</mi><mrow><mo>-</mo><mn>1</mn></mrow></msup></math>&nbsp;is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-17 09:29:45', NULL),
(252369, '85,80,239,241', '<p>The ratio of mass per cent of C and H of an organic compound&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mfenced><mrow><msub><mi>C</mi><mi>x</mi></msub><msub><mi>H</mi><mi>y</mi></msub><msub><mi>O</mi><mi>z</mi></msub></mrow></mfenced></math>&nbsp;is 6 : 1. If one molecule of the compound&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mfenced><mrow><msub><mi>C</mi><mi>x</mi></msub><msub><mi>H</mi><mi>y</mi></msub><msub><mi>O</mi><mi>z</mi></msub></mrow></mfenced></math>&nbsp;contains half as much oxygen as required to burn one molecule of compound&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>C</mi><mi>x</mi></msub><msub><mi>H</mi><mi>y</mi></msub></math>&nbsp;completely to&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>C</mi><msub><mi>O</mi><mn>2</mn></msub><mo>&#160;</mo><mi>a</mi><mi>n</mi><mi>d</mi><mo>&#160;</mo><msub><mi>H</mi><mn>2</mn></msub><mi>O</mi></math>&nbsp;. The empirical formula of compound&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>C</mi><mi>x</mi></msub><msub><mi>H</mi><mi>y</mi></msub><msub><mi>O</mi><mi>z</mi></msub></math>&nbsp;is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-17 09:50:37', NULL),
(252370, '85,80,239,241', '<p>The amount of sugar&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mfenced><mrow><msub><mi>C</mi><mn>12</mn></msub><msub><mi>H</mi><mn>22</mn></msub><msub><mi>O</mi><mn>11</mn></msub></mrow></mfenced></math>&nbsp;required to prepare 2L of its 0.1 M aqueous solution:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-17 09:51:32', NULL),
(252371, '85,80,239,241', '<p>A 10 mg effervascent tablet containing sodium bicarbonate and oxalic acid releases 0.25 mL of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>C</mi><msub><mi>O</mi><mn>2</mn></msub></math>&nbsp;at 298.15 K and P = 1 bar. If molar volume of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>C</mi><msub><mi>O</mi><mn>2</mn></msub></math>&nbsp;is&nbsp; 25.01 L under such condition, what is the percentage of sodium bicarbonate in each tablet.</p>\r\n\r\n<p>Molar mass of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>N</mi><mi>a</mi><mi>H</mi><mi>C</mi><msub><mi>O</mi><mn>3</mn></msub><mo>&#160;</mo><mo>=</mo><mo>&#160;</mo><mn>84</mn><mi>g</mi><mo>&#160;</mo><mi>m</mi><mi>o</mi><msup><mi>l</mi><mrow><mo>-</mo><mn>1</mn></mrow></msup></math></p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-17 09:54:35', NULL),
(252372, '85,80,239,241', '<p>25 mL of the given HCl solution requires 30 mL of 0.1 M sodium carbonate solution. What is the volume of this HCl solution required to titrate 30 mL of 0.2 M aqueous solution of NaOH?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-17 09:55:46', NULL),
(252373, '85,80,239,241', '<p>The hardness of water sample (in terms of equivalents of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>C</mi><mi>a</mi><mi>C</mi><msub><mi>O</mi><mn>3</mn></msub></math>) containing&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msup><mn>10</mn><mrow><mo>-</mo><mn>3</mn></mrow></msup><mi>M</mi><mi>C</mi><mi>a</mi><mi>S</mi><msub><mi>O</mi><mn>4</mn></msub></math>&nbsp;is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-17 09:56:48', NULL),
(252374, '85,80,239,241', '<p>50 mL of 0.5 M oxalic acid is needed to neutralise 25 mL of sodium hydroxide solution. The amount of NaOH in 50 mL of the sodium hydroxide given soluiton is</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-18 01:39:48', NULL),
(252375, '85,80,239,241', '<p>The volume strength of 1&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>M</mi><mo>&#160;</mo><msub><mi>H</mi><mn>2</mn></msub><msub><mi>O</mi><mn>2</mn></msub></math>&nbsp;is</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-18 01:40:29', NULL),
(252376, '85,80,239,241', '<p>8g of NaOH is dissolved in 18 g&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>H</mi><mn>2</mn></msub><mi>O</mi></math>. Mole fraction of NaOH and molality of solution are respectively.</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-18 01:41:48', NULL),
(252377, '85,80,239,241', '<p>A solution of sodium sulphate contains 92g of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>N</mi><msup><mi>a</mi><mo>+</mo></msup></math>&nbsp;ions per kg of water. The molality of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>N</mi><msup><mi>a</mi><mo>+</mo></msup></math>&nbsp;ions per kg of water. The molality of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>N</mi><msup><mi>a</mi><mo>+</mo></msup></math>&nbsp;ions is</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-18 01:43:11', NULL),
(252378, '85,80,239,241', '<p>The temporary hardness of water is due to</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-18 01:44:36', NULL),
(252379, '85,80,239,241', '<p>100 mL of water sample contains 0.81 g of calcium bicarbonate and 0.73g of magnesium bicarbonate. The hardness of this water sample in terms of ppm of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>C</mi><mi>a</mi><mi>C</mi><msub><mi>O</mi><mn>3</mn></msub></math>&nbsp;is (Aomc mass of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>C</mi><mi>a</mi><mo>(</mo><mi>H</mi><mi>C</mi><msub><mi>O</mi><mn>3</mn></msub><mo>)</mo><mo>&#160;</mo><mo>=</mo><mo>&#160;</mo><mn>162</mn><mi>g</mi><mo>&#160;</mo><mi>m</mi><mi>o</mi><msup><mi>l</mi><mrow><mo>-</mo><mn>1</mn></mrow></msup></math>&nbsp;and&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>M</mi><mi>g</mi><mo>(</mo><mi>H</mi><mi>C</mi><msub><mi>O</mi><mn>3</mn></msub><mo>)</mo><mo>&#160;</mo><mo>=</mo><mo>&#160;</mo><mn>146</mn><mi>g</mi><mo>&#160;</mo><mi>m</mi><mi>o</mi><msup><mi>l</mi><mrow><mo>-</mo><mn>1</mn></mrow></msup></math></p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-18 01:55:04', NULL),
(252380, '85,80,239,241', '<p>The percentange composition of carbon in terms of mole in methane is</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-18 01:55:41', NULL),
(252381, '85,80,239,241', '<p>For a reaction&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>N</mi><mrow><mn>2</mn><mo>(</mo><mi>g</mi><mo>)</mo></mrow></msub><mo>&#160;</mo><mo>+</mo><mo>&#160;</mo><mn>3</mn><msub><mi>H</mi><mrow><mn>2</mn><mo>(</mo><mi>g</mi><mo>)</mo></mrow></msub><mo>&#160;</mo><mo>&#8594;</mo><mo>&#160;</mo><mn>2</mn><mi>N</mi><msub><mi>H</mi><mrow><mn>3</mn><mfenced><mi>g</mi></mfenced></mrow></msub></math>, which reaction mixture shows&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>H</mi><mn>2</mn></msub></math>&nbsp;as limiting reagent</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-18 01:57:53', NULL),
(252382, '85,80,239,241', '<p>What would be the molality of 20% (mass/mass) aqueous solution of KI. (Molar mass of KI = 166 g&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>m</mi><mi>o</mi><msup><mi>l</mi><mrow><mo>-</mo><mn>1</mn></mrow></msup></math>)</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-18 01:59:01', NULL),
(252383, '85,80,239,241', '<p>5 mole of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>A</mi><msub><mi>B</mi><mn>2</mn></msub></math>&nbsp;weigh 125&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mo>&#215;</mo><mo>&#160;</mo><msup><mn>10</mn><mrow><mo>-</mo><mn>3</mn></mrow></msup></math>g and mole of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>A</mi><mn>2</mn></msub><msub><mi>B</mi><mn>2</mn></msub><mo>&#160;</mo><mi>w</mi><mi>e</mi><mi>i</mi><mi>g</mi><mi>h</mi><mo>&#160;</mo><mn>300</mn><mo>&#160;</mo><mo>&#215;</mo><mo>&#160;</mo><msup><mn>10</mn><mrow><mo>-</mo><mn>3</mn></mrow></msup></math>&nbsp;kg. The molar mass of A and B (in kg&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>m</mi><mi>o</mi><msup><mi>l</mi><mrow><mo>-</mo><mn>1</mn></mrow></msup></math>) are respectively</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-18 02:01:33', NULL),
(252384, '85,80,239,241', '<p>The temporary hardness of a water sample is due to compound X. On boiling X is converted to Y. X and Y are</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-18 02:03:38', NULL),
(252385, '85,80,239,241', '<p>25 g of unknown hydrocarbon upon burning in&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>O</mi><mn>2</mn></msub></math>&nbsp;produces 88 g&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>C</mi><msub><mi>O</mi><mn>2</mn></msub><mo>&#160;</mo><mi>a</mi><mi>n</mi><mi>d</mi><mo>&#160;</mo><mn>9</mn><mo>&#160;</mo><mi>g</mi><mo>&#160;</mo><msub><mi>H</mi><mn>2</mn></msub><mi>O</mi></math>. The hydrocarbon contains.</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-18 02:05:04', NULL),
(252386, '85,80,239,241', '<p>The strength of the 11.2 volume of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>H</mi><mn>2</mn></msub><msub><mi>O</mi><mn>2</mn></msub></math>&nbsp;solution is</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-18 02:06:13', NULL),
(252387, '85,80,239,241', '<p>The mass of water produced from 445g of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>C</mi><mn>57</mn></msub><msub><mi>H</mi><mn>110</mn></msub><msub><mi>O</mi><mn>6</mn></msub></math>&nbsp;according to reaction</p>\r\n\r\n<p><math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mn>2</mn><msub><mi>C</mi><mn>57</mn></msub><msub><mi>H</mi><mn>110</mn></msub><msub><mi>O</mi><mn>6</mn></msub><mo>(</mo><mi>s</mi><mo>)</mo><mo>&#160;</mo><mo>&#160;</mo><mn>163</mn><msub><mi>O</mi><mn>2</mn></msub><mo>(</mo><mi>g</mi><mo>)</mo><mo>&#160;</mo><mo>&#8594;</mo><mn>114</mn><mo>&#160;</mo><mi>C</mi><msub><mi>O</mi><mn>2</mn></msub><mo>(</mo><mi>g</mi><mo>)</mo><mo>&#160;</mo><mo>+</mo><mo>&#160;</mo><mn>110</mn><msub><mi>H</mi><mn>2</mn></msub><mi>O</mi><mo>(</mo><mi>l</mi><mo>)</mo></math></p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-18 02:08:07', NULL),
(252388, '85,80,239,241', '<p>An organic compound on estimation through Duma&#39;s method gives 6 mole&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>C</mi><msub><mi>O</mi><mn>2</mn></msub></math>, 4 mole&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>H</mi><mn>2</mn></msub><mi>O</mi></math>&nbsp;and 1 mole&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>N</mi><mn>2</mn></msub></math>&nbsp;gas. The formula of compound is</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-18 02:10:35', NULL),
(252389, '85,80,239,241', '<p>At 300 K and 1 atm, 10 mL of hydrocarbon required 55 mL of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>O</mi><mn>2</mn></msub></math>&nbsp;for complete combustion and produced 40 mL&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>C</mi><msub><mi>O</mi><mn>2</mn></msub></math>. The hydrocarbon is</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-18 02:13:29', NULL),
(252390, '85,80,239,241', '<p>The mole fraction of a solvent in an aqueous solution of a solute is 0.8. The molality of the aqueous solution is</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-18 02:14:25', NULL),
(252391, '85,80,239,241', '<p>Amongst the following which is not a postulate of Dalton&#39;s atomic theory</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-18 02:16:15', NULL),
(252392, '85,80,239,241', '<p>0.6 g of urea on strong heating with NaOH evolves&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>N</mi><msub><mi>H</mi><mn>3</mn></msub></math>. Liberated&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>N</mi><msub><mi>H</mi><mn>3</mn></msub></math>&nbsp;will combine completely with which of the following HCl solution ?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-18 02:19:59', NULL),
(252393, '85,80,239,241', '<p>Accurate measurement of concentration of NaOH can be performed by following titration.</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-18 02:21:57', NULL),
(252394, '85,80,239,241', '<p>0.3g&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mfenced open=\"[\" close=\"]\"><mrow><mi>M</mi><msub><mi>L</mi><mn>6</mn></msub></mrow></mfenced><mo>&#160;</mo><mi>C</mi><msub><mi>l</mi><mn>3</mn></msub><mo>&#160;</mo></math>of molar mass 267.46g/mol is reacted with 0.125M&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>A</mi><mi>g</mi><mi>N</mi><msub><mi>O</mi><mn>3</mn></msub></math>(aq.) solution, calculate volume of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>A</mi><mi>g</mi><mi>N</mi><msub><mi>O</mi><mn>3</mn></msub><mo>(</mo><mi>a</mi><mi>q</mi><mo>.</mo><mo>)</mo></math>&nbsp;required in mL.</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-18 02:25:09', NULL),
(252395, '85,80,239,241', '<p>On litre sea water (d = 1.03&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>g</mi><mo>/</mo><mi>c</mi><msup><mi>m</mi><mn>3</mn></msup></math>) contains 10.3&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>m</mi><mi>g</mi><msub><mi>O</mi><mn>2</mn></msub></math>&nbsp;gas. The concentrated of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>O</mi><mn>2</mn></msub></math>&nbsp;in ppm is</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-18 02:26:19', NULL),
(252396, '85,80,239,241', '<p>5 g of Zn reacts with</p>\r\n\r\n<p>(i) Excess of NaOH (ii) Dilute HCl, then volume ratio of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>H</mi><mn>2</mn></msub></math>&nbsp;gas evolved in (i) and (ii) is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-18 08:38:35', NULL);
INSERT INTO `questions` (`id`, `category_id`, `question`, `question_type`, `answer_type`, `subjective_ans`, `marks`, `time`, `added_by`, `status`, `current_url`, `created_at`, `updated_at`) VALUES
(252397, '85,80,239,241', '<p>The degree of hardness in term of ppm of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\" class=\"wrs_chemistry\"><msub><mi>CaCO</mi><mn>3</mn></msub><mo>&#160;</mo><mi>of</mi><mo>&#160;</mo><msup><mn>10</mn><mrow><mo>-</mo><mn>3</mn></mrow></msup></math>&nbsp;molar&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>M</mi><mi>g</mi><mi>S</mi><msub><mi>O</mi><mn>4</mn></msub><mo>(</mo><mi>a</mi><mi>q</mi><mo>.</mo><mo>)</mo></math>&nbsp;is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-18 08:39:25', NULL),
(252398, '85,80,239,241', '<p>Given a solution of&nbsp;&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>H</mi><mi>N</mi><msub><mi>O</mi><mn>3</mn></msub></math>&nbsp;of density 1.4 g/mL and 63% w/w. Molarity of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>H</mi><mi>N</mi><msub><mi>O</mi><mn>3</mn></msub></math>&nbsp;solution is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-18 08:40:49', NULL),
(252399, '85,80,239,241', '<p>Calculate the mass of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>F</mi><mi>e</mi><mi>S</mi><msub><mi>O</mi><mn>4</mn></msub><mo>&#160;</mo><mo>.</mo><mo>&#160;</mo><mn>7</mn><msub><mi>H</mi><mn>2</mn></msub><mi>O</mi></math>, which must be added in 100 kg of water to get 10 ppm of Fe.</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-18 08:41:40', NULL),
(252400, '85,80,239,241', '<p>Which statement is/are correct?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-18 08:44:48', NULL),
(252401, '85,80,239,241', '<p>The mass of electron moving with velocity of light is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-18 08:46:00', NULL),
(252402, '85,80,239,241', '<p>Milikan&#39;s oil drop experiment is used to find:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-18 08:46:43', NULL),
(252403, '85,80,239,241', '<p>The maximum sum of the number of neutrons and proton in an isotope of hydrogen is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-18 08:47:11', NULL),
(252404, '85,80,239,241', '<p>Number of electrons in&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mo>-</mo><mi>C</mi><mi>O</mi><mi>N</mi><msub><mi>H</mi><mn>2</mn></msub></math>&nbsp;are:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-18 08:47:42', NULL),
(252405, '85,80,239,241', '<p>If&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>S</mi><mn>1</mn></msub></math>&nbsp;be the specific charge (e/m) of carthode rays and&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>S</mi><mn>2</mn></msub></math>&nbsp;be that of positive rays, then which is true?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-18 08:48:57', NULL),
(252406, '85,80,239,241', '<p>The mass of an electron is m, its charge e and it is accelerated from rest through a potential difference V. The kinetic energy of the electron in joules will be:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-18 08:49:44', NULL),
(252407, '85,80,239,241', '<p>The total number of valency electrons for&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\" class=\"wrs_chemistry\"><msubsup><mi>NH</mi><mn>4</mn><mo>+</mo></msubsup></math>&nbsp;is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-18 08:50:17', NULL),
(252408, '85,80,239,241', '<p>When atoms are bombared with a-particles, only a few in a million of the a-particles suffer deflections while others pass through underflectd.</p>\r\n\r\n<p>This is because:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-18 08:52:34', NULL),
(252409, '85,80,239,241', '<p>Rydberg is</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-18 08:55:21', NULL),
(252410, '85,80,239,241', '<p>Rutherford&#39;s alpha particle scattering experiment eventually led to the conclusion that:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-18 08:56:36', NULL),
(252411, '85,80,239,241', '<p>A patient is asked to drink&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>B</mi><mi>a</mi><mi>S</mi><msub><mi>O</mi><mn>4</mn></msub></math>&nbsp;solution for examining the stomach by X-rays, because X-rays are:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-18 08:59:57', NULL),
(252412, '85,80,239,241', '<p>The total number of fundamental particles in one atom of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\" class=\"wrs_chemistry\"><mmultiscripts><mi mathvariant=\"normal\">C</mi><mprescripts/><mn>6</mn><mn>14</mn></mmultiscripts></math>&nbsp;is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-18 09:00:27', NULL),
(252413, '85,80,239,241', '<p>Atoms consist of electron, protons and neutrons. If the mass attributed to neutron was halved and that attributed to the electrons was doubled, the atomic mass of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\" class=\"wrs_chemistry\"><mmultiscripts><mi mathvariant=\"normal\">C</mi><none/><mn>12</mn><mprescripts/><mn>6</mn><mrow/></mmultiscripts></math>&nbsp;would be approximately:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-18 09:01:33', NULL),
(252414, '85,80,239,241', '<p>The value of charge on the oil droplets experimentally observed were&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mo>-</mo><mn>1</mn><mo>.</mo><mn>6</mn><mo>&#160;</mo><mo>&#215;</mo><mo>&#160;</mo><msup><mn>10</mn><mrow><mo>-</mo><mn>19</mn></mrow></msup><mo>&#160;</mo><mi>a</mi><mi>n</mi><mi>d</mi><mo>&#160;</mo><mo>-</mo><mn>4</mn><mo>&#215;</mo><mo>&#160;</mo><msup><mn>10</mn><mrow><mo>-</mo><mn>19</mn></mrow></msup></math>&nbsp;coulomb. The value of the electronic charge, indicated by these results is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-18 09:04:47', NULL),
(252415, '85,80,239,241', '<p>Atomic radius is of the order of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msup><mn>10</mn><mrow><mo>-</mo><mn>8</mn></mrow></msup></math>&nbsp;cm and nuclear radius is of the order of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msup><mn>10</mn><mrow><mo>-</mo><mn>13</mn></mrow></msup></math>&nbsp;cm. The fraction of atom occupied by nucleus is</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-18 09:05:57', NULL),
(252416, '85,80,239,241', '<p>The nucleus and an atom can be assumed to be spherical. The radius of the nucleus of mass no. A is given by&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mn>1</mn><mo>.</mo><mn>25</mn><mo>&#160;</mo><mo>&#215;</mo><mo>&#160;</mo><msup><mn>10</mn><mrow><mo>-</mo><mn>13</mn></mrow></msup><mo>&#160;</mo><mo>&#215;</mo><mo>&#160;</mo><msup><mi>A</mi><mrow><mn>1</mn><mo>/</mo><mn>3</mn></mrow></msup></math>&nbsp;cm. The atomic radius of atom is 1 A. If the mass no. is 64, the fraction of the atomic volume that is occupied by nucleus is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-18 09:08:14', NULL),
(252417, '85,80,239,241', '<p>H has two natural isotopes of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\" class=\"wrs_chemistry\"><mmultiscripts><mi mathvariant=\"normal\">H</mi><none/><mn>1</mn><mprescripts/><mn>1</mn><mrow/></mmultiscripts><mo>&#160;</mo><mi>and</mi><mo>&#160;</mo><mmultiscripts><mi mathvariant=\"normal\">H</mi><none/><mn>2</mn><mprescripts/><mn>1</mn><mrow/></mmultiscripts></math>&nbsp;and O has two isotopes&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msup><mi>O</mi><mn>16</mn></msup><mo>&#160;</mo><mi>a</mi><mi>n</mi><mi>d</mi><mo>&#160;</mo><msup><mi>O</mi><mn>18</mn></msup></math>. Which of the following mol. mass of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>H</mi><mn>2</mn></msub><mi>O</mi></math>&nbsp;will not be possible?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-18 09:12:10', NULL),
(252418, '85,80,239,241', '<p>Which of the following conclusions could not not be derived from Rutherford&#39;s a-particle scattering experiment?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-18 09:14:21', NULL),
(252419, '85,80,239,241,1742', '<p>&nbsp;The number of revolutions/sec made by an electron in II orbit is 8 times of the number of revolution/sec made by electron in nth orbit. The value of n is</p>', 'Medium', 'textarea', '<p>four</p>', 3, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-19 01:27:56', NULL),
(252420, '85,80,239,241,1742', '<p>A transaction of electron from an higher orbit to 2nd orbit produces 10 spherical lines. The higher orbit no. is.........</p>', 'Medium', 'textarea', '<p>six</p>', 3, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-19 01:28:58', NULL),
(252421, '85,80,239,241,1742', '<p>A transition for H atom from II to I orbit has same waelength as from nth orbit to 2nd orbit for&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>H</mi><msup><mi>e</mi><mo>+</mo></msup></math>ion. The value of &#39;n&#39; is.........</p>', 'Medium', 'textarea', '<p>four</p>', 3, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-19 01:30:35', NULL),
(252422, '85,80,239,241,1742', '<p>Suppose&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mn>3</mn><mo>.</mo><mn>1</mn><mo>&#160;</mo><mo>&#215;</mo><mo>&#160;</mo><msup><mn>10</mn><mrow><mo>-</mo><mn>18</mn></mrow></msup></math>&nbsp;J energy is needed by the interior of the human eye to see an object. How many photons of light of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#955;</mi></math>&nbsp;= 400 nm will be needed to see the object. (h = 6.6&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mo>&#215;</mo><mo>&#160;</mo><msup><mn>10</mn><mrow><mo>-</mo><mn>34</mn></mrow></msup></math>Js)</p>', 'Medium', 'textarea', '<p>Seven</p>', 3, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-19 01:32:35', NULL),
(252423, '85,80,239,241,1742', '<p>Humphry series is obtained when electron in H-atom jumps from a higher orbit to n orbit. The value of n is...........</p>', 'Medium', 'textarea', '<p>six</p>', 3, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-19 01:33:15', NULL),
(252424, '85,80,239,241,1742', '<p>The total values of m for each orbital in M shell are.....</p>', 'Medium', 'textarea', '<p>nine</p>', 3, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-19 01:34:16', NULL),
(252425, '85,80,239,241,1742', '<p>No. of elliptical orbitals in 5th shell are.....</p>', 'Medium', 'textarea', '<p>four</p>', 3, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-19 01:35:20', NULL),
(252426, '85,80,239,241,1742', '<p>No. of nodal planes in 3d orbtitals are.......</p>', 'Medium', 'textarea', '<p>two</p>', 3, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-19 01:35:49', NULL),
(252427, '85,80,239,241,1742', '<p>The magnetic moment of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\" class=\"wrs_chemistry\"><mmultiscripts><mi>Nb</mi><mprescripts/><mn>41</mn><mrow/></mmultiscripts></math>&nbsp;if found to be 5.916. Total no. of unpaired electron are.......</p>', 'Medium', 'textarea', '<p>five</p>', 3, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-19 01:36:37', NULL),
(252428, '85,80,239,241,1742', '<p>An absorption of 12.088 eV energy by an electron in ground state of H-atom brings in the excitation of electron to which orbit?</p>', 'Medium', 'textarea', '<p>three</p>', 3, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-19 01:37:45', NULL),
(252429, '85,80,239,241,1742', '<p>The no. of degenerate orbital in&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>&#968;</mi><mrow><mn>4</mn><mo>,</mo><mo>&#160;</mo><mn>2</mn><mo>,</mo><mo>&#160;</mo><mn>0</mn></mrow></msub></math>&nbsp;orbital of H-atom</p>', 'Medium', 'textarea', '<p>five</p>', 3, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-19 01:38:48', NULL),
(252430, '85,80,239,241,1742', '<p>The maximum number of electrons that can have principal quantum no, n = 3 and spin quantum no.&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>m</mi><mi>s</mi></msub><mo>&#160;</mo><mo>=</mo><mo>&#160;</mo><mo>-</mo><mfrac><mn>1</mn><mn>2</mn></mfrac></math>is........</p>', 'Medium', 'textarea', '<p>nine</p>', 3, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-19 01:39:54', NULL),
(252431, '85,80,239,241,1742', '<p>Non condsidering the electronic spin the degeneracy of the second excited state (n = 3) of H-atom is 9, where the degeneracy of the second excited state of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msup><mi>H</mi><mo>-</mo></msup></math>&nbsp;is:</p>', 'Medium', 'textarea', '<p>three</p>', 3, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-19 01:40:59', NULL),
(252432, '85,80,239,241,1742', '<p>The atomic masses of He and Ne are 4 and 20 a.m.u., respectively. The value of the de Broglie waelength of He gas at&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mo>-</mo><msup><mn>73</mn><mo>&#8728;</mo></msup><mi>C</mi></math>&nbsp;is&nbsp; &quot;M&quot; times that of the de Broglie wavelength of Ne at&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msup><mn>727</mn><mo>&#8728;</mo></msup><mi>C</mi></math>&nbsp;. M is:</p>', 'Medium', 'textarea', '<p>Five</p>', 3, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-19 01:43:07', NULL),
(252433, '85,80,239,241', '<p>An increasing order (lowest first) for the values of e/m for electron (e), proton (p), neutron (n) and alpha&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mfenced><mi>&#945;</mi></mfenced></math>&nbsp;particle is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doupdate', '2025-09-19 01:48:48', NULL),
(252434, '85,80,239,241', '<p>If h is Planck&#39;s constant, the momentum of a photon of wavelength 0.01&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mover><mi>A</mi><mo>*</mo></mover></math>&nbsp;is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doupdate', '2025-09-19 01:50:59', NULL),
(252435, '85,80,239,241,1742', '<p>Which is not characteristics of Planck&#39;s quantum theory of radiation?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-19 01:52:32', NULL),
(252436, '85,80,239,241,1742', '<p>The momentum of a photon of frequency&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mn>5</mn><mo>&#215;</mo><msup><mn>10</mn><mn>17</mn></msup><msup><mi>s</mi><mrow><mo>-</mo><mn>1</mn></mrow></msup></math>&nbsp;is nearly:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-19 01:54:16', NULL),
(252437, '85,80,239,241,1742', '<p>Chlorine exists in two isotopic forms, Cl - 37 and Cl - 35 but its atomic mass is 35.5. This indicates the ratio of Cl-37 nad Cl-35 is approximately:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-19 01:55:35', NULL),
(252438, '85,80,239,241,1742', '<p>Three isotopes of an element have mass numbers, m, (m + 1) and (m + 2). If the mean mass number is (m + 0.5) then which of the following ratios may be accepted for m, (m + 1), (m + 2) in that order?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-19 01:56:55', NULL),
(252439, '85,80,239,241,1742', '<p>Which electromagnetic radiation has extremely small wavelength?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-19 01:57:48', NULL),
(252440, '85,80,239,241,1742', '<p>Which electromagnetic radiation has extremely small wavelength?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-19 01:58:26', NULL),
(252441, '85,80,239,241,1742', '<p>A quanta will have more energy, if:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-19 01:59:50', NULL),
(252442, '85,80,239,241,1742', '<p>The Planck&#39;s constant has a unit of :</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-19 02:00:19', NULL),
(252443, '85,80,239,241,1742', '<p>Oxygen consists of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msup><mi>O</mi><mn>16</mn></msup><mo>,</mo><mo>&#160;</mo><msup><mi>O</mi><mn>17</mn></msup><mo>&#160;</mo><mi>a</mi><mi>n</mi><mi>d</mi><mo>&#160;</mo><msup><mi>O</mi><mn>18</mn></msup></math>&nbsp;isotopes and carbon consists of isotopes of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msup><mi>C</mi><mn>12</mn></msup><mo>&#160;</mo><mi>a</mi><mi>n</mi><mi>d</mi><mo>&#160;</mo><msup><mi>C</mi><mn>13</mn></msup></math>. Total number of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>C</mi><msub><mi>O</mi><mn>2</mn></msub></math>&nbsp;molecules possible are:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-19 02:01:40', NULL),
(252444, '85,80,239,241,1742', '<p>The electromagnetic radiation with maximum wavelength is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-19 02:02:23', NULL),
(252445, '85,80,239,241,1742', '<p>A photon in X region is more energetic than in the visible region, X is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-19 02:03:03', NULL),
(252446, '85,80,239,241,1742', '<p>The rest mass of a photon of wavelength&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#955;</mi></math>&nbsp;is</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-19 02:04:09', NULL),
(252447, '85,80,239,241,1742', '<p>The dynamic mass of a photon of wavelength&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#955;</mi></math>&nbsp;is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-19 02:05:05', NULL),
(252448, '85,80,239,241,1742', '<p>Minimum number of photons of light of wavelength 4000&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mover><mi>A</mi><mo>&#183;</mo></mover></math>, which provide 1 J energy:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-19 02:06:43', NULL),
(252449, '85,80,239,241,1742', '<p>An atom emits equal to&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mn>4</mn><mo>&#160;</mo><mo>&#215;</mo><mo>&#160;</mo><msup><mn>10</mn><mrow><mo>-</mo><mn>12</mn></mrow></msup></math>&nbsp;erg. To which part of electromagnetic spectrum it belongs?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-19 02:24:06', NULL),
(252450, '85,80,239,241,1742', '<p>The energy&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mo>&#8710;</mo><mi>E</mi></math>&nbsp;corresponding to intense yellow line of sodium of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#955;</mi></math>, 589 nm is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-19 02:25:10', NULL),
(252451, '85,80,239,241,1742', '<p>The wave number of radiation of wavelength 500 nm is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-19 02:26:25', NULL),
(252452, '85,80,239,241,1742', '<p>Suppose&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msup><mn>10</mn><mrow><mo>-</mo><mn>17</mn></mrow></msup></math>&nbsp;J of light energy is needed by the interior of human eye to see an object. The photons of green light (<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#955;</mi></math>&nbsp;= 550 nm) needed to see the object are:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-19 02:27:40', NULL),
(252453, '85,80,239,241,1742', '<p>A photon of 300 nm is absorbed by a gas and then re-emits two photons. One re-emitted photon has wavelength 496 nm, the wavelength of second re-emitted photon is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-19 02:28:41', NULL),
(252454, '85,80,239,241,1742', '<p>Normally, the time taken in the transition is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-19 02:29:38', NULL),
(252455, '85,80,239,241,1742', '<p>Which statement relating to the spectrum of H atom is false?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-19 02:31:16', NULL),
(252456, '85,80,239,241,1742', '<p>The wavelength of a spectral line for an electronic transition is inversely related to:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-19 02:32:24', NULL),
(252457, '85,80,239,241,1742', '<p>As the number of orbit increase from the nucleus, the difference between the adjacent energy levels:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-19 02:33:11', NULL),
(252458, '85,80,239,241,1742', '<p>In hydrogen atom, which energy level order is not correct?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-19 02:33:51', NULL),
(252459, '85,80,239,241,1742', '<p>The number of elliptical orbits, including circular orbits in the M-shell of an atom is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-19 02:34:17', NULL),
(252460, '85,80,239,241,1742', '<p>The first use of quantum theory to explain the structure of atom was made by:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-19 02:35:01', NULL),
(252461, '85,80,239,241,1742', '<p>The angular speed of the electron in the nth orbit of Borh hydrogen atom is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-19 02:36:20', NULL),
(252462, '85,80,239,241,1742', '<p>Of the following transitions in hydrogen atom, the one which gives an absorption line of lowest frequency is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-19 02:37:20', NULL),
(252463, '85,80,239,241,1742', '<p>According to Bohr&#39;s postulates which quantity can take up only discrete values:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-19 02:38:04', NULL),
(252464, '85,80,239,241,1742', '<p>Which are in the ascending order of wavelength?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-19 02:39:46', NULL),
(252465, '85,80,239,241,1742', '<p>The angular momentum of electron of H-atom is proportional to:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-19 02:40:47', NULL),
(252466, '85,80,239,241', '<p>The hydrogen spectrum from an incandescent source of hydrogen is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doupdate', '2025-09-19 02:41:49', NULL),
(252467, '85,80,239,241,1742', '<p>The ratio of the difference in energy of electron between the first and second Bohr&#39;s orbits to that between second and third Bohr&#39;s orbits is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-19 02:42:38', NULL),
(252468, '85,80,239,241,1742', '<p>Which electronic level will allow the hydrogen atom to absorb photon but not to emit?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-19 02:43:13', NULL),
(252469, '85,80,239,241,1742', '<p>In H atom, the electron is de-excited from fifth shell to first shell. How many different lines may appear in line spectrum?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-19 02:43:59', NULL),
(252470, '85,80,239,241,1742', '<p>When electronic transition occurs from higher energy state to a lower energy state with energy difference equal to&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mo>&#8710;</mo><mi>E</mi></math>&nbsp;expressed in electron volts, the wavelength of line emitted is approximately equal to:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-19 02:46:41', NULL),
(252471, '85,80,239,241,1742', '<p>The KE of electron in&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>H</mi><msup><mi>e</mi><mo>+</mo></msup></math>&nbsp;will be maximum in:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-19 02:47:37', NULL),
(252472, '85,80,239,241,1742', '<p>The ionisation potential of hydrogen atom is 13.6 eV. The energy required to remove an electron from the n = 2 state of hydrogen atom is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-19 02:48:36', NULL),
(252473, '85,80,239,241', '<p>The electronic velocity in the fourth Bohr&#39;s orbit of hydrogen is v. The velocity of the electron in the first orbit would be:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doupdate', '2025-09-19 02:49:17', NULL),
(252474, '85,80,239,241', '<p>The energy of the electron in second Bohr&#39;s orbit in the hydrogen atom is -3.41 eV. The energy of the electron in second Bohr&#39;s orbit of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>H</mi><msup><mi>e</mi><mo>+</mo></msup></math>&nbsp;ion would be:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doupdate', '2025-09-19 02:50:41', NULL),
(252475, '85,80,239,241', '<p>The Bohr&#39;s energy equation for H-atom reveals that the energy level of a shell is given by E = -13.58/<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msup><mi>n</mi><mn>2</mn></msup></math>&nbsp;eV. The smallest amount that an H-atom will absorb, if in ground state is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doupdate', '2025-09-19 02:52:30', NULL),
(252476, '85,80,239,241', '<p>The amount of energy required to remove the electron from a&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>L</mi><msup><mi>i</mi><mrow><mn>2</mn><mo>+</mo></mrow></msup></math>&nbsp;ion in its ground state is how many times greater than the amount of energy required to remove the electron from an H-atom in its ground state</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-19 02:54:33', NULL),
(252477, '85,80,239,241', '<p>If the ionisation potential for hydrogen atom is 13.6 eV, then the wavelength of light required for the ionisation of hydrogen atom would be:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-19 02:55:28', NULL),
(252478, '85,80,239,241', '<p>Visible spectrum of hydrogen shows that it exists in two different forms which are based on direction of spin of the:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-19 02:56:44', NULL),
(252479, '85,80,239,241', '<p>The first emission line of Balmer series for H-spectrum has the wave no. equal to:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-19 02:58:29', NULL),
(252480, '85,80,239,241', '<p>In Bohr&#39;s model of the hydrogen atom the ratio between the period of revolution of an electron in the orbit n = 1 to the period of revolution of the electron in the orbit n = 2 is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-19 02:59:27', NULL),
(252481, '85,80,239,241', '<p>In an atom two electrons move around the nucleus in circular orbits of radii R and 4R. The ratio of the time taken by them to complete one revolution is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-19 03:00:24', NULL),
(252482, '85,80,239,241', '<p>The ratio between kinetic energy and the total energy and the total energy of the electrons of hydrogen atom according to Bohr&#39;s model is :</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-19 03:03:05', NULL),
(252483, '85,80,239,241', '<p>Radiation given out during transition of n = 2 to n = 1 for H-atoms are allowed to fall on&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>H</mi><msup><mi>e</mi><mo>+</mo></msup></math>&nbsp;ions in n = 1 and n = 2 states. The possible transitions of helium ion due to absorption of energy is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-19 03:04:56', NULL),
(252484, '85,80,239,241', '<p>If teh series limit of wavelength of the Lyman series for the hydrogen atom is 912&nbsp;<math class=\"wrs_chemistry\" xmlns=\"http://www.w3.org/1998/Math/MathML\"><mover><mi mathvariant=\"normal\">A</mi><mo>*</mo></mover></math>&nbsp;then the series limit of wavelength for the Balmer series of the hydrogen atom is</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-20 02:05:22', NULL),
(252485, '85,80,239,241', '<p>The difference in angular momentum associated with the electron in two successive orbits of hydrogen atom is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-20 02:07:42', NULL),
(252486, '85,80,239,241', '<p>One requires energy&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>E</mi><mi>n</mi></msub></math>&nbsp;to remove a nucleon and an energy&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>E</mi><mi>e</mi></msub></math>&nbsp;to remove an electron from the orbit of an atom, then&nbsp;</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-20 02:09:25', NULL),
(252487, '85,80,239,241', '<p>The ratio of the radius of the orbit for the electron orbiting the hydrogen nucleus to that of an electron orbiting a deuterium nucleus is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-20 02:11:52', NULL),
(252488, '85,80,239,241', '<p>First Balmer line in H-spectrum is 660 nm. The wavelength of second Balmer line is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-20 02:12:37', NULL),
(252489, '85,80,239,241', '<p>The longest&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#955;</mi></math>&nbsp;for the Lyman series is: (Given&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>R</mi><mi>H</mi></msub></math>&nbsp;= 109678&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>c</mi><msup><mi>m</mi><mrow><mo>-</mo><mn>1</mn></mrow></msup></math>)</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-20 02:14:57', NULL),
(252490, '85,80,239,241', '<p>The&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#955;</mi><mo>&#160;</mo><mi>f</mi><mi>o</mi><mi>r</mi><mo>&#160;</mo><msub><mi>H</mi><mi>&#945;</mi></msub></math>&nbsp;line of Balmer series is 6500&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mover><mi>A</mi><mo>&#176;</mo></mover></math>&nbsp;. Thus,&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#955;</mi></math>&nbsp;for&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>H</mi><mi>&#946;</mi></msub></math>&nbsp;line of Balmer series is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-20 02:16:40', NULL),
(252491, '85,80,239,241', '<p>What transition in&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>H</mi><msup><mi>e</mi><mo>+</mo></msup></math>&nbsp;ion shall have the same wave number as the first line in Balmer series of hydrogen atom?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-20 02:17:55', NULL),
(252492, '85,80,239,241', '<p>The approximate quantum number of a circular orbit of diameter, 20.6 nm of the hydrogen atom according to Bohr&#39;s theory is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-20 02:19:33', NULL),
(252493, '85,80,239,241', '<p>The radii of two of the first four Bohr&#39;s orbits of the hydrogen atom are in the ratio 1 : 4. The energy difference between them may be:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-20 02:21:36', NULL),
(252494, '85,80,239,241', '<p>Given that in the H-atom the transition energy for n = 1 to n = 2, 10.2 eV, the energy for the same transition in&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>B</mi><msup><mi>e</mi><mrow><mn>3</mn><mo>+</mo></mrow></msup><mo>&#160;</mo><mi>i</mi><mi>s</mi><mo>:</mo></math></p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-20 02:23:55', NULL),
(252495, '85,80,239,241', '<p>If the radius of first Bohr&#39;s orbit be&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>a</mi><mn>0</mn></msub></math>, then the radius of third Bohr&#39;s orbit would be:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-20 02:25:16', NULL),
(252496, '85,80,239,241', '<p>The radius of Bohr&#39;s first orbit in H-atom is 0.053 nm. The radius of second orbit in&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>H</mi><msup><mi>e</mi><mo>+</mo></msup></math>&nbsp;would be:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-20 02:26:22', NULL),
(252497, '85,80,239,241', '<p>In&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>L</mi><msup><mi>i</mi><mrow><mn>2</mn><mo>+</mo></mrow></msup></math>&nbsp;electrons in 1 Bohr orbit is excited to a level by radiation of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#955;</mi></math>. When the ions get deexcited to the ground state in all possible ways including intermediate emissions, a total of six spectral lines are observed. What is the value of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#955;</mi></math>?</p>\r\n\r\n<p><math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mfenced><mrow><mi>h</mi><mo>&#160;</mo><mo>=</mo><mo>&#160;</mo><mn>6</mn><mo>.</mo><mn>63</mn><mo>&#160;</mo><mo>&#215;</mo><mo>&#160;</mo><msup><mn>10</mn><mrow><mo>-</mo><mn>34</mn></mrow></msup><mo>&#160;</mo><mi>J</mi><mo>-</mo><mi>s</mi><mo>,</mo><mo>&#160;</mo><mi>c</mi><mo>&#160;</mo><mo>=</mo><mo>&#160;</mo><mn>3</mn><mo>&#160;</mo><mo>&#215;</mo><mo>&#160;</mo><msup><mn>10</mn><mn>8</mn></msup><mo>&#160;</mo><mi>m</mi><msup><mi>s</mi><mrow><mo>-</mo><mn>1</mn></mrow></msup></mrow></mfenced></math></p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-20 02:28:52', NULL),
(252498, '85,80,239,241', '<p>The electron in a H-atom first jumps for 3rd to 2nd excited state and subsequently to first excited state. The ratio of the respected wavelength&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>&#955;</mi><mn>1</mn></msub><mo>/</mo><msub><mi>&#955;</mi><mn>2</mn></msub></math>&nbsp;of the photon emitted during the process is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-20 02:30:39', NULL),
(252499, '85,80,239,241', '<p>The wavelength of radiation emitted when electron falls from 4th Bohr&#39;s orbit to 2nd in H-atom is:</p>\r\n\r\n<p><math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>R</mi><mi>H</mi></msub><mo>&#160;</mo><mo>=</mo><mo>&#160;</mo><mo>-</mo><mn>1</mn><mo>.</mo><mn>09678</mn><mo>&#160;</mo><mo>&#215;</mo><mo>&#160;</mo><msup><mn>10</mn><mrow><mo>-</mo><mn>7</mn></mrow></msup><mi>m</mi></math>)</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-20 02:31:56', NULL),
(252500, '85,80,239,241', '<p>The energy of electron in first orbit of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>H</mi><msup><mi>e</mi><mo>+</mo></msup></math>&nbsp;is&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mfenced><mrow><msub><mi>R</mi><mi>H</mi></msub><mo>&#160;</mo><mo>=</mo><mo>&#160;</mo><mo>-</mo><mn>871</mn><mo>.</mo><mn>6</mn><mo>&#160;</mo><mo>&#215;</mo><mo>&#160;</mo><msup><mn>10</mn><mrow><mo>-</mo><mn>20</mn></mrow></msup><mi>J</mi></mrow></mfenced></math>. The energy of electron in the first orbit of H is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-20 02:34:41', NULL),
(252501, '85,80,239,241', '<p><math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>E</mi><mn>1</mn></msub><mo>&#160;</mo><mi>f</mi><mi>o</mi><mi>r</mi><mo>&#160;</mo><msup><mi>H</mi><mo>+</mo></msup></math>&nbsp;is -54.4 eV. The&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>E</mi><mn>2</mn></msub><mo>&#160;</mo><mi>f</mi><mi>o</mi><mi>r</mi><mo>&#160;</mo><mi>H</mi><msup><mi>e</mi><mo>+</mo></msup></math>&nbsp;would be:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-20 02:36:18', NULL),
(252502, '85,80,239,241', '<p>An excited&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>H</mi><msup><mi>e</mi><mo>+</mo></msup></math>&nbsp;ion emits two photons in succession with wavelength 108.5 and 30.4 nm respectively. The quantum no. n&#39; corresponding to its initial excited state is: E =&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mfrac><mn>120</mn><mrow><mi>&#955;</mi><mo>&#160;</mo><mo>(</mo><mi>n</mi><mi>m</mi><mo>)</mo></mrow></mfrac><mi>e</mi><mi>V</mi></math></p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-20 02:38:04', NULL),
(252503, '85,80,239,241', '<p>In a H-like atom when an electron jumps from M-shell to L-shell the wavelength of emitted radiation is&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#955;</mi></math>. If an electron jumps from N-shell to L-shell, the wavelength of emitted radiation will be:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-20 02:41:08', NULL),
(252504, '85,80,239,241', '<p>A hydrogen atom in its ground state absorbs a photon, The maximum energy of such a photon is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-20 02:44:08', NULL),
(252505, '85,80,239,241', '<p>Energy of an electron in the first Bohr&#39;s orbit of H-atom is -13.6 eV. The possible energy value (s) for electrons in Bohr&#39;s orbits of hydrogen is (are)</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-20 02:48:17', NULL),
(252506, '85,80,239,241', '<p>The angular momentum of electron in nth orbit is given by:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-20 02:49:31', NULL),
(252507, '85,80,239,241', '<p>The velocity of electron in the hydrogen atom is&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mn>2</mn><mo>.</mo><mn>2</mn><mo>&#215;</mo><msup><mn>10</mn><mn>6</mn></msup></math>&nbsp;m/s. The de Broglie wavelength for this electron is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-20 02:50:40', NULL),
(252508, '85,80,239,241', '<p>If the total energy of an electron in a hydrogen like atom in an excited state is -3.4 eV, then the de Broglie wavelength of the electron is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-20 02:52:15', NULL),
(252509, '85,80,239,241', '<p>If de Broglie wavelength of an electron is equal to&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msup><mn>10</mn><mrow><mo>-</mo><mn>3</mn></mrow></msup></math>&nbsp;times the wavelength of photon frequency&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mn>6</mn><mo>&#160;</mo><mo>&#215;</mo><mo>&#160;</mo><msup><mn>10</mn><mn>14</mn></msup></math>&nbsp;Hz, then the speed of electron in m/s is: (speed of light =&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mn>3</mn><mo>&#215;</mo><msup><mn>10</mn><mn>8</mn></msup></math>&nbsp;m/s, Planck&#39;s constant = 6.63&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mo>&#215;</mo><mo>&#160;</mo><msup><mn>10</mn><mrow><mo>-</mo><mn>34</mn></mrow></msup></math>&nbsp;J-s and mass of electron is&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mn>9</mn><mo>.</mo><mn>1</mn><mo>&#160;</mo><mo>&#215;</mo><mo>&#160;</mo><msup><mn>10</mn><mrow><mo>-</mo><mn>31</mn></mrow></msup><mi>k</mi><mi>g</mi><mo>)</mo></math></p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-20 02:55:34', NULL),
(252510, '85,80,239,241', '<p>Assuming the velocity be same, which sub-atomic particle possesses smallest de Broglie wavelength?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-20 02:56:43', NULL),
(252511, '85,80,239,241', '<p>If&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>E</mi><mn>1</mn></msub><mo>,</mo><mo>&#160;</mo><msub><mi>E</mi><mn>2</mn></msub><mo>&#160;</mo><mi>a</mi><mi>n</mi><mi>d</mi><mo>&#160;</mo><msub><mi>E</mi><mn>3</mn></msub></math>&nbsp;represent respectively the kinetic energies of an electron, an alpha particle and a proton each having same de Broglie wavelength then:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-20 02:58:55', NULL),
(252512, '85,80,239,241', '<p>The electron possesses were properties was shown experimentally by:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-20 02:59:40', NULL),
(252513, '85,80,239,241', '<p>The momentum of radiation of wavelength 0.33 nm is......kg m&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>s</mi><mi>e</mi><msup><mi>c</mi><mrow><mo>-</mo><mn>1</mn></mrow></msup></math></p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-20 03:01:10', NULL),
(252514, '85,80,239,241', '<p>The de Broglie wavelength of a 66 kg man sking down Kufri Hill in Shimla at&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mn>1</mn><mo>&#160;</mo><mo>&#215;</mo><mo>&#160;</mo><msup><mn>10</mn><mn>3</mn></msup><mo>&#160;</mo><mi>m</mi><mo>&#160;</mo><mi>s</mi><mi>e</mi><msup><mi>c</mi><mrow><mo>-</mo><mn>1</mn></mrow></msup></math>&nbsp;is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-20 03:02:37', NULL),
(252515, '85,80,239,241', '<p>Wavelength of a photon is&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mn>2</mn><mo>.</mo><mn>0</mn><mo>&#160;</mo><mo>&#215;</mo><mo>&#160;</mo><msup><mn>10</mn><mrow><mo>-</mo><mn>11</mn></mrow></msup><mi>m</mi><mo>,</mo><mo>&#160;</mo><mi>h</mi><mo>&#160;</mo><mo>=</mo><mo>&#160;</mo><mn>6</mn><mo>.</mo><mn>6</mn><mo>&#160;</mo><mo>&#215;</mo><mo>&#160;</mo><msup><mn>10</mn><mrow><mo>-</mo><mn>34</mn></mrow></msup><mo>&#160;</mo><mi>J</mi><mi>s</mi></math>. The momentum of photon is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-20 03:04:37', NULL),
(252516, '85,80,239,241', '<p>We can say that the energy of a photon of frequency v is given by E = hv, where h is Planck&#39;s constant. The momentum of a photon is p = h/<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#955;</mi></math>, where&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#955;</mi></math>&nbsp;is the wavelength of photon. Then we may conclude that velocity of light is equal to:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-20 03:06:36', NULL),
(252517, '85,80,239,241', '<p>Which of the following is responsible to rule out the existence of definite paths or trajectories of electrons?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-20 03:08:18', NULL),
(252518, '85,80,239,241', '<p>Which statement is correct for an electron that has n = 4 and m = -2?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-20 11:32:10', NULL),
(252519, '85,80,239,241', '<p>The statement, which is/are correct</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-20 11:33:18', NULL),
(252520, '85,80,239,241', '<p>Orbitals possessing the same energy are called:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-20 11:34:02', NULL),
(252521, '85,80,239,241', '<p>Non-directional orbital is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-20 11:34:25', NULL),
(252522, '85,80,239,241', '<p>Which d-orbital has different shape from rest of all d-orbital?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-20 11:35:45', NULL),
(252523, '85,80,239,241', '<p>Which orbital is represented by&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>&#968;</mi><mrow><mn>4</mn><mo>,</mo><mn>2</mn><mo>,</mo><mn>0</mn></mrow></msub></math>?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-20 11:36:27', NULL),
(252524, '85,80,239,241', '<p>For the energy levels in an atom, correct statement is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-20 11:37:57', NULL),
(252525, '85,80,239,241', '<p>A p-orbital can accommodate:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-20 11:38:47', NULL),
(252526, '85,80,239,241', '<p>The first orbital of H is represented by:<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#968;</mi><mo>&#160;</mo><mo>=</mo><mo>&#160;</mo><mfrac><mn>1</mn><msqrt><mi>&#960;</mi></msqrt></mfrac><msup><mfenced><mfrac><mn>1</mn><msub><mi>a</mi><mn>0</mn></msub></mfrac></mfenced><mrow><mn>3</mn><mo>/</mo><mn>2</mn></mrow></msup><msup><mi>e</mi><mrow><mo>-</mo><mi>r</mi><mo>/</mo><msub><mi>a</mi><mn>0</mn></msub></mrow></msup></math>, where&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>a</mi><mn>0</mn></msub></math>&nbsp;is Bohr&#39;s radius. The probability of finding the electron at a distance r, from the nucleus in the region dV is:&nbsp;</p>\r\n\r\n<p>&nbsp;</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-20 11:44:47', NULL),
(252527, '85,80,239,241', '<p><math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msup><mi>&#968;</mi><mn>2</mn></msup></math>&nbsp;(psi) the wave&nbsp; function represents the probability of finding electron. Its value depends:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-20 11:46:22', NULL),
(252528, '85,80,239,241', '<p>How many electrons with l = 3 are there in an atom having atomic number 54 ?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-20 11:47:05', NULL),
(252529, '85,80,239,241', '<p>For a given value of azimuthal quantum number l, the total number of values for the magnetic quantum number m are given by:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 02:27:09', NULL);
INSERT INTO `questions` (`id`, `category_id`, `question`, `question_type`, `answer_type`, `subjective_ans`, `marks`, `time`, `added_by`, `status`, `current_url`, `created_at`, `updated_at`) VALUES
(252530, '85,80,239,241', '<p>What is the correct orbital designation for the electron with the quantum number, n = 4, l = 3, m = -2, s = 1/2?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 02:28:43', NULL),
(252531, '85,80,239,241', '<p>The orbital cylindrically symmetrical about x-axis is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 02:38:56', NULL),
(252532, '85,80,239,241', '<p>Wave mechanical model of the atom depends upon:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 02:40:06', NULL),
(252533, '85,80,239,241', '<p>A 3d-electron having s = +1/2 can have a magnetic quantum no.:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 02:40:48', NULL),
(252534, '85,80,239,241', '<p>Two electrons in the same orbital may be identified with:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 02:41:30', NULL),
(252535, '85,80,239,241', '<p>The azimuthal quantum number of an electron in a 5d-orbital:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 02:42:26', NULL),
(252536, '85,80,239,241', '<p>The angular momentum of an electron in an atomic orbital is governed by the:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 02:43:19', NULL),
(252537, '85,80,239,241', '<p>The maximum number of 3d-electrons having spin quantum number s = +1/2 are:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 02:43:52', NULL),
(252538, '85,80,239,241', '<p>The maximum probability of finding electron in the&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>d</mi><mrow><mi>x</mi><mi>y</mi></mrow></msub></math>&nbsp;orbital is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 02:45:20', NULL),
(252539, '85,80,239,241', '<p>The three quantum numbers n, l and m are the outcome of:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 02:46:14', NULL),
(252540, '85,80,239,241', '<p>Which d-orbital does not have four lobes?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 02:47:15', NULL),
(252541, '85,80,239,241', '<p>The zero probability of finding the electron in&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>p</mi><mi>x</mi></msub></math>- orbital is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 02:48:18', NULL),
(252542, '85,80,239,241', '<p>The orbital closest to the nucleus is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 02:48:42', NULL),
(252543, '85,80,239,241', '<p>An electron that has the quantum number n = 3 and m = 2:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 02:49:33', NULL),
(252544, '85,80,239,241', '<p>The radial probability distribution curve of an orbital of H has &#39;4&#39; local maxima. If orbital has 3 angular node then orbital will be:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 02:50:20', NULL),
(252545, '85,80,239,241', '<p>The Schrodinger wave equation for hydrogen atom is&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>&#968;</mi><mrow><mn>2</mn><mi>s</mi></mrow></msub><mo>&#160;</mo><mo>=</mo><mo>&#160;</mo><mfrac><mn>1</mn><mrow><mn>4</mn><msqrt><mn>2</mn><mi mathvariant=\"normal\">&#960;</mi></msqrt></mrow></mfrac><msup><mfenced><mfrac><mn>1</mn><msub><mi>a</mi><mn>0</mn></msub></mfrac></mfenced><mfrac><mn>3</mn><mn>2</mn></mfrac></msup><mfenced><mrow><mn>2</mn><mo>-</mo><mfrac><mi>r</mi><msub><mi>a</mi><mn>0</mn></msub></mfrac></mrow></mfenced><msup><mi>e</mi><mrow><mo>-</mo><mi>r</mi><mo>/</mo><msub><mi>a</mi><mn>0</mn></msub></mrow></msup></math>, where&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>a</mi><mn>0</mn></msub></math>&nbsp;is Bohr&#39;s radius. If the radial node in 2s be at&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>r</mi><mn>0</mn></msub></math>, then&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>r</mi><mn>0</mn></msub></math>&nbsp;would be equal to:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 02:53:13', NULL),
(252546, '85,80,239,241', '<p>In which orbital electron is most tightly bound to the nucleus?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 02:53:41', NULL),
(252547, '85,80,239,241', '<p>A neutral atom of an element has 2K, 8L, 11M and 2N electrons. Total number of electrons with l = 2 will be:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 02:54:24', NULL),
(252548, '85,80,239,241', '<p>The number of vacant d-orbitals in completely excited Cl atom is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 02:54:51', NULL),
(252549, '85,80,239,241', '<p>The quantum number sufficient to describe the electron in H atom is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 02:55:14', NULL),
(252550, '85,80,239,241', '<p>A node is a surface on which the probability of finding an electron is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 02:55:40', NULL),
(252551, '85,80,239,241', '<p>Maximum number of electrons which can be accommodated in a g orbital is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 02:56:11', NULL),
(252552, '85,80,239,241', '<p>The orbital with maximum number of possible orientations is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 02:56:55', NULL),
(252553, '85,80,239,241', '<p>The quantum number that is in no way related to other quantum number is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 02:57:35', NULL),
(252554, '85,80,239,241', '<p>The maximum number of atomic orbitals associated with a principal quantum number 5 is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 02:58:14', NULL),
(252555, '85,80,239,241', '<p>In an atom wave mechanics suggests that electrons:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 02:59:12', NULL),
(252556, '85,80,239,241', '<p>How many electrons can fit into the orbitals that comprise the 3rd quantum shell?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 02:59:41', NULL),
(252557, '85,80,239,241', '<p>The quantum number that does not describe the distance and the angular disposition of the electron&nbsp;</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 03:00:14', NULL),
(252558, '85,80,239,241', '<p>Which orbital does not posses angular node?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 03:00:32', NULL),
(252559, '85,80,239,241', '<p>The d-orbital with the orientation along X and Y axes is called:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 03:01:39', NULL),
(252560, '85,80,239,241', '<p>The number of radial nodes for 3p orbitals is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 03:01:58', NULL),
(252561, '85,80,239,241,2566', '<p>Out of first 100 elements, number of elements having electrons in 3d-orbitals are:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 03:03:25', NULL),
(252562, '85,80,239,241,2566', '<p>Electrons occupy the available sub-level which has lower n + l value. This is called:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 03:04:41', NULL),
(252563, '85,80,239,241,2566', '<p>The quantum numbers of most energetic electron in Ne atom when it is in first excited state is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 03:05:44', NULL),
(252564, '85,80,239,241,2566', '<p>Nitrogen has the electronic configuration&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\" class=\"wrs_chemistry\"><mn>1</mn><msup><mi mathvariant=\"normal\">s</mi><mn>2</mn></msup><mo>,</mo><mo>&#160;</mo><mn>2</mn><msup><mi mathvariant=\"normal\">s</mi><mn>2</mn></msup><mn>2</mn><msubsup><mi mathvariant=\"normal\">p</mi><mi mathvariant=\"normal\">x</mi><mn>1</mn></msubsup><mn>2</mn><msubsup><mi mathvariant=\"normal\">p</mi><mi mathvariant=\"normal\">y</mi><mn>1</mn></msubsup><mn>2</mn><msubsup><mi mathvariant=\"normal\">p</mi><mi mathvariant=\"normal\">z</mi><mn>1</mn></msubsup><mo>&#160;</mo><mi>and</mi><mo>&#160;</mo><mi>not</mi><mo>&#160;</mo><mn>1</mn><msup><mi mathvariant=\"normal\">s</mi><mn>2</mn></msup><mo>,</mo><mo>&#160;</mo><mn>2</mn><msup><mi mathvariant=\"normal\">s</mi><mn>2</mn></msup><mn>2</mn><msubsup><mi mathvariant=\"normal\">p</mi><mi mathvariant=\"normal\">x</mi><mn>2</mn></msubsup><mn>2</mn><msubsup><mi mathvariant=\"normal\">p</mi><mi mathvariant=\"normal\">y</mi><mn>1</mn></msubsup><mn>2</mn><msubsup><mi mathvariant=\"normal\">p</mi><mi mathvariant=\"normal\">z</mi><mn>0</mn></msubsup></math>. It was proposed by:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 03:07:48', NULL),
(252565, '85,80,239,241,2566', '<p>The orbital diagram in which Aufbau principle is violated is:</p>\r\n\r\n<p><img alt=\"\" src=\"https://school.achievam.com/upload/questionbank/question/que_1758424150.PNG\" style=\"height:89px; width:395px\" /></p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 03:09:26', NULL),
(252566, '85,80,239,241,2566', '<p>Correct set of four quantum numbers for valency (outermost) electron of rubidium (Z = 37) is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 03:10:28', NULL),
(252567, '85,80,239,241,2566', '<p>According to (n + l) rule after completing &#39;np&#39; level the electron enters to:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 03:11:22', NULL),
(252568, '85,80,239,241,2566', '<p>In ground state of chromium atom (Z = 24) the total number of orbitals populated by one or more electrons is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 03:12:07', NULL),
(252569, '85,80,239,241,2566', '<p>Electronic configuration of niobium (Nb = 41) is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 03:13:30', NULL),
(252570, '85,80,239,241,2566', '<p>The total number of electrons that can be accommodated in all the orbitals having principle quantum number 2 and azimuthal number 1 is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 03:14:17', NULL),
(252571, '85,80,239,241,2566', '<p>The number of vacant orbitals of element with atomic number 14 is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 03:14:40', NULL),
(252572, '85,80,239,241,2566', '<p>Which atom has a many as s-electrons as p-electrons?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 03:15:15', NULL),
(252573, '85,80,239,241,2566', '<p>Krypton&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\" class=\"wrs_chemistry\"><mfenced><mmultiscripts><mi>Kr</mi><mprescripts/><mn>36</mn><mrow/></mmultiscripts></mfenced></math>&nbsp;has the electronic configuration&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\" class=\"wrs_chemistry\"><mfenced open=\"[\" close=\"]\"><mmultiscripts><mi>Ar</mi><mprescripts/><mn>18</mn><mrow/></mmultiscripts></mfenced></math>,&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mn>4</mn><msup><mi>s</mi><mn>2</mn></msup><mn>3</mn><msup><mi>d</mi><mn>10</mn></msup><mn>4</mn><msup><mi>p</mi><mn>6</mn></msup></math>, the 37th electron will go into which of the following sub-shells?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 03:17:08', NULL),
(252574, '85,80,239,241,2566', '<p>The atomic number of an element is 17. The number of orbitals containing electron pairs in the valency shell is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 03:17:43', NULL),
(252575, '85,80,239,241,2566', '<p>The atomic number of the element having maximum number of unpaired 3p-electrons is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 03:18:22', NULL),
(252576, '85,80,239,241,2566', '<p>The first atom with incomplete d-shell is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 03:18:46', NULL),
(252577, '85,80,239,241,2566', '<p>If the atomic number of Ni and Cu are 28 and 29 respectively to which of the following does the electronic configuration&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mn>1</mn><msup><mi>s</mi><mn>2</mn></msup><mo>,</mo><mo>&#160;</mo><mn>2</mn><msup><mi>s</mi><mn>2</mn></msup><mn>2</mn><msup><mi>p</mi><mn>6</mn></msup><mo>,</mo><mo>&#160;</mo><mn>3</mn><msup><mi>s</mi><mn>2</mn></msup><mn>3</mn><msup><mi>p</mi><mn>6</mn></msup><mo>&#160;</mo><mn>3</mn><msup><mi>d</mi><mn>10</mn></msup></math>&nbsp;represents?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 03:20:21', NULL),
(252578, '85,80,239,241,2566', '<p>Which of the following ions has electronic configuration&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mfenced open=\"[\" close=\"]\"><mrow><mi>A</mi><mi>r</mi></mrow></mfenced><mn>3</mn><msup><mi>d</mi><mn>6</mn></msup></math>?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 03:21:58', NULL),
(252579, '85,80,239,241,2566', '<p>Which electronic configuration does not follow the Pauli&#39;s exclusion principle?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 03:23:22', NULL),
(252580, '85,80,239,241,2566', '<p>The number of d-electrons retained in&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>F</mi><msup><mi>e</mi><mrow><mn>3</mn><mo>+</mo></mrow></msup></math>&nbsp;ion is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 03:23:52', NULL),
(252581, '85,80,239,241,2566', '<p>An ion&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>M</mi><msup><mi>n</mi><mrow><mi>a</mi><mo>+</mo></mrow></msup></math>&nbsp;has the magnetic moment equal to 4.9 B.M. The value of a is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 03:24:37', NULL),
(252582, '85,80,239,241', '<p>In photoelectric effect the number of photo-electrons emitted is proportional to:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 03:25:46', NULL),
(252583, '85,80,239,241', '<p>Increase in the frequency of the incident radiations increases the:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 03:26:38', NULL),
(252584, '85,80,239,241', '<p>Threshold wavelength depends upon:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 03:27:21', NULL),
(252585, '85,80,239,241', '<p>In a photoelectric experiment, thresold wavelength of light of&nbsp; a metal is 380 nm. If wavelength of 280 nm is incidented on metal, the maximum kinetic energy of emitted electron will be:</p>\r\n\r\n<p><math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mfenced open=\"[\" close=\"]\"><mrow><msub><mi>E</mi><mrow><mi>i</mi><msub><mi>n</mi><mrow><mi>e</mi><mi>V</mi></mrow></msub></mrow></msub><mo>&#160;</mo><mo>=</mo><mo>&#160;</mo><mfrac><mn>1237</mn><msub><mi>&#955;</mi><mrow><mo>(</mo><mi>i</mi><mi>n</mi><mo>&#160;</mo><mi>n</mi><mi>m</mi><mo>)</mo></mrow></msub></mfrac></mrow></mfenced></math></p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 03:29:41', NULL),
(252586, '85,80,239,241', '<p>The minimum energy required to eject an electron from an atom is called:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 03:30:27', NULL),
(252587, '85,80,239,241', '<p>Photoelectric effect shows:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 03:31:26', NULL),
(252588, '85,80,239,241', '<p>A photoelectric cell is a device, which:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 03:32:36', NULL),
(252589, '85,80,239,241', '<p>The work function for photoelectric effect:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 03:33:28', NULL),
(252590, '85,80,239,241', '<p>Einstein&#39;s photoelectric equation states that&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>E</mi><mi>K</mi></msub><mo>&#160;</mo><mo>=</mo><mo>&#160;</mo><mi>h</mi><mi>v</mi><mo>&#160;</mo><mo>-</mo><mo>&#160;</mo><mi>W</mi><mo>.</mo></math>&nbsp;In this equation,&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>E</mi><mi>k</mi></msub></math>&nbsp;referes to:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 03:35:00', NULL),
(252591, '85,80,239,241', '<p>The stopping potential&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>V</mi><mn>0</mn></msub></math>&nbsp;(in volt) as a function of frequency (v) for sodium emitter is shown in figure. The work function of sodium from the data plotted in figure would be:</p>\r\n\r\n<p><math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mfenced><mrow><mi>h</mi><mo>&#160;</mo><mo>=</mo><mo>&#160;</mo><mn>6</mn><mo>.</mo><mn>63</mn><mo>&#160;</mo><mo>&#215;</mo><mo>&#160;</mo><msup><mn>10</mn><mrow><mo>-</mo><mn>34</mn></mrow></msup><mi>J</mi><mo>-</mo><mi>s</mi></mrow></mfenced><mo>,</mo><mo>&#160;</mo><mi>c</mi><mi>h</mi><mi>a</mi><mi>r</mi><mi>g</mi><mi>e</mi><mo>&#160;</mo><mo>=</mo><mo>&#160;</mo><mn>1</mn><mo>.</mo><mn>6</mn><mo>&#160;</mo><mo>&#215;</mo><mo>&#160;</mo><msup><mn>10</mn><mrow><mo>-</mo><mn>19</mn></mrow></msup><mi>C</mi><mo>)</mo></math></p>\r\n\r\n<p><img alt=\"\" src=\"https://school.achievam.com/upload/questionbank/question/que_1758425842.PNG\" style=\"height:126px; width:240px\" /></p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 03:37:51', NULL),
(252592, '85,80,239,241', '<p>When the frequency of light incident on a metallic plate is doubled, the KE of the emitted photoelectrons will be:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 03:38:53', NULL),
(252593, '85,80,239,241', '<p>Phtoelectric emission is observed form a surface for frequency&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>v</mi><mn>1</mn></msub><mo>&#160;</mo><mi>a</mi><mi>n</mi><mi>d</mi><mo>&#160;</mo><msub><mi>v</mi><mn>2</mn></msub></math>&nbsp;of the incident radiation&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mfenced><mrow><msub><mi>v</mi><mn>1</mn></msub><mo>&#160;</mo><mo>&#62;</mo><mo>&#160;</mo><msub><mi>v</mi><mn>2</mn></msub></mrow></mfenced></math>. If the maximum kinetic energies of the photoelectrons in the two cases are in the ratio 1 : k, then the threshold frequency&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>v</mi><mn>0</mn></msub></math>&nbsp;is given by:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 03:42:37', NULL),
(252594, '85,80,239,241', '<p>Splitting of spectral lines when atoms are subjected to strong electric field is called:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 03:43:35', NULL),
(252595, '85,80,239,241', '<p><math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>L</mi><msup><mi>i</mi><mrow><mn>2</mn><mo>+</mo></mrow></msup><mo>&#160;</mo><mi>a</mi><mi>n</mi><mi>d</mi><mo>&#160;</mo><mi>B</mi><msup><mi>e</mi><mrow><mn>3</mn><mo>+</mo></mrow></msup></math>&nbsp;are:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 03:44:09', NULL),
(252596, '85,80,239,241', '<p>Suppose a completely filled or half filled set of p or d-orbitals is spherically symmetrical. Point out the species, which is spherical symmetrical?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 03:45:28', NULL),
(252597, '85,80,239,241', '<p>The species having more electrons than neutrons is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 03:46:28', NULL),
(252598, '85,80,239,241', '<p>The ratio of radii of two nuclei with mass numbers 27 and 64 is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 03:46:55', NULL),
(252599, '85,80,239,241', '<p>Total number of unpaired electrons, in an unexcited atom of atomic number 29 is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 03:47:21', NULL),
(252600, '85,80,239,241', '<p>The quantum numbers for the last electrons of an atom are n = 2, l = 0, m = 0, s = +1/2. The atom is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 03:48:07', NULL),
(252601, '85,80,239,241', '<p>The magnetic moment of electron in an atom (excluding orbital magnetic moment) is given by:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 03:49:36', NULL),
(252602, '85,80,239,241', '<p>Paricles, which can be added to the nucleus of an atom without changing the chemical properties, are called:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 03:50:28', NULL),
(252603, '85,80,239,241', '<p>A transition element X has configuration&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mfenced open=\"[\" close=\"]\"><mrow><mi>A</mi><mi>r</mi></mrow></mfenced><mn>3</mn><msup><mi>d</mi><mn>5</mn></msup></math>&nbsp;in its +3 oxidation state. Its atomc number is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 03:51:15', NULL),
(252604, '85,80,239,241', '<p>The electronic configuration of silver atom in ground state is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 03:53:09', NULL),
(252605, '85,80,239,241', '<p>Which particle may be removed from a stable neutral atom with least energy change?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 03:54:00', NULL),
(252606, '85,80,239,241', '<p>Particle having mass 200 times that of an electron is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 03:54:35', NULL),
(252607, '85,80,239,241', '<p>Atomic mass of Ne is 20.2. Ne is a mixture of&nbsp;&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>N</mi><msup><mi>e</mi><mn>20</mn></msup><mo>&#160;</mo><mi>a</mi><mi>n</mi><mi>d</mi><mo>&#160;</mo><mi>N</mi><msup><mi>e</mi><mn>22</mn></msup></math>. Relative abundance of heavier isotope is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 03:55:32', NULL),
(252608, '85,80,239,241', '<p>The pair of ions having same electronic configuration is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 03:56:59', NULL),
(252609, '85,80,239,241', '<p>The number of nodal planes in a&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>p</mi><mi>x</mi></msub><mo>&#160;</mo></math>- orbital is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 04:00:06', NULL),
(252610, '85,80,239,241', '<p>If the speed of electron in the Bohr&#39;s first orbit of hydrogen atom is x, the speed of the electron in the third Bohr&#39;s orbit is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 04:00:48', NULL),
(252611, '85,80,239,241', '<p>Which does not characterise X-rays?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 04:01:52', NULL),
(252612, '85,80,239,241', '<p>A 3 p-orbital has:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 04:02:46', NULL),
(252613, '85,80,239,241', '<p>Which of the following has the maximum number of unpaired electrons?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 04:03:45', NULL),
(252614, '85,80,239,241', '<p>The orbital angular momentum of an electron in 2s-orbital is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 04:04:45', NULL),
(252615, '85,80,239,241', '<p>The first use of quantum theory to explain the structure of atom was made by:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 04:05:24', NULL),
(252616, '85,80,239,241', '<p>For a &#39;d&#39; electron, the orbital angular momentum is:</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 04:06:11', NULL),
(252617, '85,80,239,241', '<p>Which of the following statement is (are) correct?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 04:08:01', NULL),
(252618, '85,80,239,241', '<p>The energy of an electron in the first Bohr&#39;s orbit of H-atom is -13.6 eV. The possible enegy value (s) of the excited state (s) for electron in Bohr&#39;s orbits of hydrogen is (are):</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 04:09:05', NULL),
(252619, '85,80,239,241', '<p>The electronic configuration of an element is&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mn>1</mn><msup><mi>s</mi><mn>2</mn></msup><mo>,</mo><mo>&#160;</mo><mn>2</mn><msup><mi>s</mi><mn>2</mn></msup><mn>2</mn><msup><mi>p</mi><mn>6</mn></msup><mo>,</mo><mo>&#160;</mo><mn>3</mn><msup><mi>s</mi><mn>2</mn></msup><mn>3</mn><msup><mi>p</mi><mn>6</mn></msup><mn>3</mn><msup><mi>d</mi><mn>5</mn></msup><mo>,</mo><mo>&#160;</mo><mn>4</mn><msup><mi>s</mi><mn>1</mn></msup><mo>&#160;</mo></math>. The represent is:</p>', 'Medium', 'checkbox', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 04:11:44', NULL),
(252620, '85,80,90,147,239,740', '<p>In the cell, <math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>Z</mi><mi>n</mi><mo>&#160;</mo><mo>|</mo><mi>Z</mi><msup><mi>n</mi><mrow><mn>2</mn><mo>+</mo></mrow></msup><mo>&#160;</mo><mo>|</mo><mo>|</mo><mo>&#160;</mo><mi>C</mi><msup><mi>u</mi><mrow><mn>2</mn><mo>+</mo></mrow></msup><mo>|</mo><mi>C</mi><mi>u</mi><mo>,</mo><mo>&#160;</mo></math>the negative terminal is</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 04:23:29', NULL),
(252621, '85,80,90,147,239,740', '<p>In a Daniell cell,</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 04:24:13', NULL),
(252622, '85,80,90,147,239,740', '<p>Which of the following statements is correct about the given Daniell cell?</p>\r\n\r\n<p><img alt=\"\" src=\"https://school.achievam.com/upload/questionbank/question/que_1758428706.PNG\" style=\"height:207px; width:275px\" /></p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 04:28:15', NULL),
(252623, '85,80,90,147,239,740', '<p>Given here are two figures of Daniell cell (X) and (Y). Study the figures and mark the incorrect statement from the following.</p>\r\n\r\n<p><img alt=\"\" src=\"https://school.achievam.com/upload/questionbank/question/que_1758428986.PNG\" style=\"height:347px; width:268px\" /></p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 04:32:15', NULL),
(252624, '85,80,90,147,239,740', '<p>A galvanic cell has electrical potential of 1.1 lf an opposing potential of 1.1 V is applied to this cell. what will happen to the cell reaction and current flowing through the cell?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 04:34:45', NULL),
(252625, '85,80,90,147,239,740', '<p>Which of the following reactions is possible at anode?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 04:36:39', NULL),
(252626, '86,79,112,357,2586', '<p>What is the resistance of an ideal voltmeter?</p>', 'Medium', 'textarea', '<p>na</p>', 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 15:02:42', NULL),
(252627, '86,79,112,357,2586', '<p>Which is the better way to connect lights and other appliances in domestic wiring and why?</p>', 'Medium', 'textarea', '<p>na</p>', 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 15:03:11', NULL),
(252628, '86,79,112,357,2586', '<p>Plot a graph between the voltage and the current for a substance which does not obey Ohm&#39;s law.</p>', 'Medium', 'textarea', '<p>na</p>', 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 15:03:39', NULL),
(252629, '86,79,112,357,2586', '<p>What is the purpose of a switch in an electric circuit?</p>', 'Medium', 'textarea', '<p>na</p>', 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 15:04:00', NULL),
(252630, '86,79,112,357,2586', '<p>What happens to the resistance of a conductor as its temperature increases?</p>', 'Medium', 'textarea', '<p>na</p>', 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 15:04:20', NULL),
(252631, '86,79,112,357,2586', '<p>Why are metals commonly used as conductors?</p>', 'Medium', 'textarea', '<p>na</p>', 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 15:04:39', NULL),
(252632, '86,79,112,357,2586', '<p>How does a fuse protect a circuit?</p>', 'Medium', 'textarea', '<p>na</p>', 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 15:04:55', NULL),
(252633, '86,79,112,357,2586', '<p>Name a common insulating material used in electrical wires.</p>', 'Medium', 'textarea', '<p>na</p>', 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 15:05:12', NULL),
(252634, '86,79,112,357,2586', '<p>What is the symbol for electric current?</p>', 'Medium', 'textarea', '<p>na</p>', 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 15:05:27', NULL),
(252635, '86,79,112,357,2586', '<p>What causes electric current to flow in a circuit?</p>', 'Medium', 'textarea', '<p>na</p>', 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 15:05:48', NULL),
(252636, '86,79,112,357,2586', '<p>Why are coils of electric toasters and electric irons made of an alloy rather than a pure metal?</p>', 'Medium', 'textarea', '<p>na</p>', 3, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 15:06:54', NULL),
(252637, '86,79,112,357,2586', '<p>Will current flow more easily through a thick wire or a thin wire of the same material, when connected to the same source? Why?</p>', 'Medium', 'textarea', '<p>na</p>', 3, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 15:07:26', NULL),
(252638, '86,79,112,357,2586', '<p>What are the two types of electric current?</p>', 'Medium', 'textarea', '<p>na</p>', 3, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 15:07:42', NULL),
(252639, '86,79,112,357,2586', '<p>Define voltage or potential difference.</p>', 'Medium', 'textarea', '<p>na</p>', 3, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 15:07:57', NULL),
(252640, '86,79,112,357,2586', '<p>What does Ohm&#39;s law state?</p>', 'Medium', 'textarea', '<p>na</p>', 3, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 15:08:10', NULL),
(252641, '86,79,112,357,2586', '<p>What is electrical resistance?</p>', 'Medium', 'textarea', '<p>na</p>', 3, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 15:08:22', NULL),
(252642, '86,79,112,357,2586', '<p>Differentiate between a conductor and an insulator.</p>', 'Medium', 'textarea', '<p>na</p>', 3, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 15:08:42', NULL),
(252643, '86,79,112,357,2586', '<p>Differentiate between closed and open circuits.</p>', 'Medium', 'textarea', '<p>na</p>', 3, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 15:08:57', NULL),
(252644, '86,79,112,357,2586', '<p>How does a switch work in an electric circuit?</p>', 'Medium', 'textarea', '<p>na</p>', 3, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 15:09:13', NULL),
(252645, '86,79,112,357,2586', '<p>Differentiate between series and parallel circuits?</p>', 'Medium', 'textarea', '<p>na</p>', 3, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 15:09:30', NULL),
(252646, '86,79,112,357,2586', '<p>Why doe we connect ammeter in series and voltmeter in parallel in a circuit?</p>', 'Medium', 'textarea', '<p>na</p>', 3, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 15:09:56', NULL),
(252647, '86,79,112,357,2586', '<p>Find the number of joules in 1 kWh.</p>', 'Medium', 'textarea', '<p>na</p>', 3, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 15:10:14', NULL),
(252648, '86,79,112,357,2586', '<p>What is electric currrent, and how does it flow in a circuit?</p>', 'Medium', 'textarea', '<p>na</p>', 3, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 15:10:33', NULL),
(252649, '86,79,112,357,2586', '<p>What is the fundamental difference between current electricity and static electricity?</p>', 'Medium', 'textarea', '<p>na</p>', 3, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 15:10:58', NULL),
(252650, '86,79,112,357,2586', '<p>Explain the relationship between electric current, voltage, and resistance using Ohm&#39;s law.</p>', 'Medium', 'textarea', '<p>na</p>', 3, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 15:11:41', NULL),
(252651, '86,79,112,357,2586', '<p>What is the significance of the direction of current flow in a circuit? Why is it conventionally defined from positive to negative?</p>', 'Medium', 'textarea', '<p>na</p>', 5, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 15:12:20', NULL),
(252652, '86,79,112,357,2586', '<p>Why are metals typically good conductor of electricity?</p>', 'Medium', 'textarea', '<p>na</p>', 5, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 15:12:38', NULL),
(252653, '86,79,112,357,2586', '<p>What are the factors that determine the resistance of an electrical conductor?</p>', 'Medium', 'textarea', '<p>na</p>', 3, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 15:12:59', NULL),
(252654, '86,79,112,357,2586', '<p>What are the laws of combination of resistances? With the help of a diagram derive the formula for equivalent resistance of thre resistors connected in&nbsp;</p>\r\n\r\n<p>(a) series and</p>\r\n\r\n<p>(b) parallel</p>\r\n\r\n<p>On what factors does the resistivity of the material depend?</p>', 'Medium', 'textarea', '<p>na</p>', 5, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 15:13:56', NULL),
(252655, '86,79,112,357,2586', '<p>What is the role of a fuse wire in our life? How it protects us from the high current?</p>', 'Medium', 'textarea', '<p>na</p>', 5, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 15:14:39', NULL),
(252656, '86,79,112,357,2586', '<p>A child has drawn the electric circuit to study Ohm&#39;s law as shown in figure. His teacher said that the circuit diagram needs correction. Study the circuit diagram and redraw it after making all corrections.</p>\r\n\r\n<p><img alt=\"\" src=\"https://school.achievam.com/upload/questionbank/question/que_1758467867.PNG\" style=\"height:120px; width:211px\" /></p>', 'Medium', 'textarea', '<p>na</p>', 5, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 15:18:04', NULL),
(252657, '86,79,112,357,2586', '<p>Three 2&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#937;</mi></math>&nbsp;resistors A, B, and C are connected as shown in the figure. Each of them dissipates energy and can withstand a maximum power of 18 W without melting. Find the maximum current that can flow through the three resistors?</p>\r\n\r\n<p><img alt=\"\" src=\"https://school.achievam.com/upload/questionbank/question/que_1758468068.PNG\" style=\"height:116px; width:276px\" /></p>', 'Medium', 'textarea', '<p>na</p>', 5, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 15:21:15', NULL),
(252658, '86,79,112,357,2586', '<p>Should the resistance of an ammeter be low or high? Give reason.</p>', 'Medium', 'textarea', '<p>na</p>', 5, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 15:21:39', NULL),
(252659, '86,79,112,357,2586', '<p>Should the resistance of an ammeter be low or high? Give reason.</p>', 'Medium', 'textarea', '<p>na</p>', 5, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 15:22:32', NULL),
(252660, '86,79,112,357,2586', '<p>Draw a circuit diagram of an electric circuit containing a cell, a key, an ammeter, a resistor of 2<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#937;</mi></math>&nbsp;in series with a combination of two resistors ( 4<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#937;</mi></math>&nbsp;each) in parallel and a voltmeter across the parallel combination. Will the potential difference across the 2<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#937;</mi></math>&nbsp;resistor be the same as that across the parallel combination of 4<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#937;</mi></math>&nbsp;resistors? Give reason.</p>', 'Medium', 'textarea', '<p>na</p>', 5, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 15:25:24', NULL),
(252661, '86,79,112,357,2586', '<p>What is electrical resistivity? In a series electrical circuit comprising a resistor made up of a metalic wire, the ammeter reads 5A. The reading of the ammeter decreases to half when the length of the wire is doubled. Why?</p>', 'Medium', 'textarea', '<p>na</p>', 5, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 15:26:35', NULL),
(252662, '86,79,112,357,2586', '<p>Electrical resistivity of some substances at&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msup><mn>20</mn><mo>&#8728;</mo></msup><mi>C</mi></math>&nbsp;are given below:</p>\r\n\r\n<table border=\"1\" cellpadding=\"1\" cellspacing=\"1\" style=\"width:500px\">\r\n	<tbody>\r\n		<tr>\r\n			<td>Silver</td>\r\n			<td><math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mn>1</mn><mo>.</mo><mn>60</mn><mo>&#160;</mo><mo>&#215;</mo><mo>&#160;</mo><msup><mn>10</mn><mrow><mo>-</mo><mn>8</mn></mrow></msup><mi>&#937;</mi><mo>-</mo><mi>m</mi></math></td>\r\n		</tr>\r\n		<tr>\r\n			<td>Copper</td>\r\n			<td><math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mn>1</mn><mo>.</mo><mn>62</mn><mo>&#160;</mo><mo>&#215;</mo><mo>&#160;</mo><msup><mn>10</mn><mrow><mo>-</mo><mn>8</mn></mrow></msup><mi>&#937;</mi><mo>-</mo><mi>m</mi></math></td>\r\n		</tr>\r\n		<tr>\r\n			<td>Tungsten</td>\r\n			<td><math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mn>5</mn><mo>.</mo><mn>2</mn><mo>&#160;</mo><mo>&#215;</mo><msup><mn>10</mn><mrow><mo>-</mo><mn>8</mn></mrow></msup><mi>&#937;</mi><mo>-</mo><mi>m</mi></math></td>\r\n		</tr>\r\n		<tr>\r\n			<td>Iron</td>\r\n			<td><math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mn>10</mn><mo>.</mo><mn>0</mn><mo>&#160;</mo><mo>&#215;</mo><mo>&#160;</mo><msup><mn>10</mn><mrow><mo>-</mo><mn>8</mn></mrow></msup><mi>&#937;</mi><mo>-</mo><mi>m</mi></math></td>\r\n		</tr>\r\n		<tr>\r\n			<td>Mercury</td>\r\n			<td><math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mn>94</mn><mo>.</mo><mn>0</mn><mo>&#160;</mo><mo>&#215;</mo><mo>&#160;</mo><msup><mn>10</mn><mrow><mo>-</mo><mn>8</mn></mrow></msup><mi>&#937;</mi><mo>-</mo><mi>m</mi></math></td>\r\n		</tr>\r\n		<tr>\r\n			<td>Nichrome</td>\r\n			<td><math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mn>10</mn><mo>.</mo><mn>0</mn><mo>&#160;</mo><mo>&#215;</mo><mo>&#160;</mo><msup><mn>10</mn><mrow><mo>-</mo><mn>8</mn></mrow></msup><mi>&#937;</mi><mo>-</mo><mi>m</mi></math></td>\r\n		</tr>\r\n	</tbody>\r\n</table>\r\n\r\n<p>Answer the following question in relation to them:</p>\r\n\r\n<p>(i) Among silver and copper, which one is a better conductor? Why?</p>\r\n\r\n<p>(ii) Which material would you advise to be use in electrical heating devices? Why?</p>', 'Medium', 'textarea', '<p>na</p>', 5, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 15:30:27', NULL),
(252663, '86,79,112,357,2586', '<p>The length of different metallic wires but of same area of cross section and made of the same material are given below.</p>\r\n\r\n<table border=\"1\" cellpadding=\"1\" cellspacing=\"1\" style=\"width:500px\">\r\n	<tbody>\r\n		<tr>\r\n			<td>Wire</td>\r\n			<td>Length (m)</td>\r\n		</tr>\r\n		<tr>\r\n			<td>A&nbsp;</td>\r\n			<td>1m</td>\r\n		</tr>\r\n		<tr>\r\n			<td>B</td>\r\n			<td>1.5m</td>\r\n		</tr>\r\n		<tr>\r\n			<td>C</td>\r\n			<td>2.0m</td>\r\n		</tr>\r\n	</tbody>\r\n</table>\r\n\r\n<p>(i) Out of these wire, which wire has higher resistance.</p>\r\n\r\n<p>(ii) Which wire has the highest electrical resistivity. Justify your anwer.</p>', 'Medium', 'textarea', '<p>na</p>', 5, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 15:33:40', NULL),
(252664, '86,79,112,357,2586', '<p>A current of 1 A flows in a series circuit containing an electric lamp and a conductor of 5<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#937;</mi></math>&nbsp;when connected to a 10V battery. Calculate the resistance of the electric lamp. Now if a resistance of 10<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#937;</mi></math>&nbsp;is connected in parallel with this series combination, what change (if any) in current flowing through 5<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#937;</mi></math>&nbsp;conductor and potential difference across the lamp will take place? Give reason.</p>', 'Medium', 'textarea', '<p>na</p>', 5, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 15:36:56', NULL),
(252665, '86,79,112,357,2586', '<p>A large number of free electrons are present in metals, yet no current flows in the absence of electric potential across it. Explain the statement with reason.</p>', 'Medium', 'textarea', '<p>na</p>', 5, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 15:37:32', NULL),
(252666, '86,79,112,357,2586', '<p><math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>B</mi><mn>1</mn></msub><mo>,</mo><mo>&#160;</mo><msub><mi>B</mi><mn>2</mn></msub><mo>&#160;</mo><mi>a</mi><mi>n</mi><mi>d</mi><mo>&#160;</mo><msub><mi>B</mi><mn>3</mn></msub></math>&nbsp;are three idential bulbs connected as shown in the figure. When all the three bulbs glow, a current of 3A recorded by the ammeter A.</p>\r\n\r\n<p><img alt=\"\" src=\"https://school.achievam.com/upload/questionbank/question/que_1758469271.PNG\" style=\"height:150px; width:173px\" /></p>\r\n\r\n<p>(i) What happens to the glow of the other two bulbs when the bulb&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>B</mi><mn>1</mn></msub></math>&nbsp;gets fused?</p>\r\n\r\n<p>(ii) What happens to the reading of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>A</mi><mn>1</mn></msub><mo>,</mo><mo>&#160;</mo><msub><mi>A</mi><mn>2</mn></msub><mo>,</mo><mo>&#160;</mo><msub><mi>A</mi><mn>3</mn></msub><mo>&#160;</mo><mi>a</mi><mi>n</mi><mi>d</mi><mo>&#160;</mo><mi>A</mi></math>&nbsp;when the bulb&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>B</mi><mn>2</mn></msub></math>&nbsp;gets fused?</p>\r\n\r\n<p>(iii) How much power is dissipated in the circuit when all the three bulbs glow together?</p>', 'Medium', 'textarea', '<p>na</p>', 5, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-21 15:45:46', NULL),
(252667, '86,90,227,513,2342', '<p>Distinguish between a conductor , a semiconductor and an insulator on the basis of energy band diagrams.</p>', 'Medium', 'textarea', NULL, 3, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-21 16:01:15', NULL),
(252668, '86,90,227,513,2342', '<p>Distinguish between n-type and p-type semiconductors on the basis of energy band diagrams. Compare their Conductivities at absolute zero temperature and at room temperature.</p>', 'Medium', 'textarea', NULL, 2, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-21 16:05:58', NULL),
(252669, '86,90,227,513,2342', '<p>Explain the effect of temperature on the resistivity of pure semiconductors.</p>', 'Medium', 'textarea', NULL, 2, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-21 16:07:06', NULL),
(252670, '86,90,227,513,2342', '<p>&nbsp;A p-type Si semiconductor is made by doping an average of one dopant atom per&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mn>5</mn><mo>&#215;</mo><msup><mn>10</mn><mn>7</mn></msup></math> silicon atoms. If the number density of silicon atoms in the specimen is&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mn>5</mn><mo>&#215;</mo><msup><mn>10</mn><mn>28</mn></msup></math> atoms/m&sup3;, find the number of holes created per cubic centimetre in the specimen due to doping. Also give one example of such dopants.</p>', 'Medium', 'textarea', NULL, 2, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-21 16:11:15', NULL),
(252671, '86,90,227,513,2342', '<p>(a) Draw circuit arrangement for studying V-I characteristics of a p-n junction diode.</p>\r\n\r\n<p>(b) Show the shape of the characteristics of a diode.</p>\r\n\r\n<p>(c) Mention two information that you can get from these characteristics. &nbsp;&nbsp;</p>', 'Medium', 'textarea', NULL, 3, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-21 16:12:05', NULL),
(252672, '86,90,227,513,2342', '<p>&quot;Carbon (C), Silicon (Si), and Germanium (Ge) all have the same crystal lattice structure. Why does Carbon act as an insulator, while Silicon and Germanium behave as intrinsic semiconductors?&quot;</p>', 'Medium', 'textarea', NULL, 2, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-21 16:15:40', NULL),
(252673, '86,90,227,513,2342', '<p>(a) Describe briefly, with the help of a diagram, the role of the two important processes involved in the formation of a p-n junction.&nbsp;</p>\r\n\r\n<p>(b) Name the device which is used as a voltage-regulator. Draw the necessary circuit diagram and explain its working.</p>', 'Medium', 'textarea', NULL, 5, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-21 16:17:51', NULL),
(252674, '86,90,227,513,2342', '<p>How reverse current suddenly increase at the breakdown voltage in case of zener diode?</p>', 'Medium', 'textarea', NULL, 2, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-21 16:19:53', NULL),
(252675, '86,90,227,513,2342', '<p>With the help of a diagram, show the biasing of a Light Emitting Diode (LED). Give its two advantages over conventional incandescent lamps.</p>', 'Medium', 'radio', NULL, 3, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-21 16:22:05', NULL);
INSERT INTO `questions` (`id`, `category_id`, `question`, `question_type`, `answer_type`, `subjective_ans`, `marks`, `time`, `added_by`, `status`, `current_url`, `created_at`, `updated_at`) VALUES
(252676, '86,90,227,513,2342', '<p>Distinguish between the light emitting diode and the photodiode.</p>', 'Medium', 'textarea', NULL, 2, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-21 16:23:19', NULL),
(252677, '86,90,227,513,2342', '<p>Write the truth table for the combination of the gates shown in the figure.</p>\r\n\r\n<p><img alt=\"\" src=\"https://school.achievam.com/upload/questionbank/question/que_1758471931.png\" style=\"height:100px\" /></p>', 'Medium', 'textarea', NULL, 2, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-21 16:25:52', NULL),
(252678, '86,90,227,513,2342', '<p>&quot;Draw the output waveform of the given logic circuit for the inputs A and B as shown in the diagram.&quot;</p>\r\n\r\n<p><img alt=\"\" src=\"https://school.achievam.com/upload/questionbank/question/que_1758472542.jpg\" style=\"height:110px; width:345px\" /></p>', 'Medium', 'textarea', NULL, 2, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-21 16:36:08', NULL),
(252679, '86,90,227,513,2342', '<p>Draw the output wave form at X, using the given inputs A, B for the logic circuit shown below. Also identify the gate.</p>\r\n\r\n<p><img alt=\"\" src=\"https://school.achievam.com/upload/questionbank/question/que_1758499614.jpg\" style=\"height:120px; width:456px\" /></p>', 'Medium', 'textarea', NULL, 2, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-22 00:07:17', NULL),
(252680, '86,90,227,513,2342', '<p>Draw the output waveform X, using the given inputs A and B for the logic circuit shows below. Also, identify the logic operation performed by this circuit.</p>\r\n\r\n<p><img alt=\"\" src=\"https://school.achievam.com/upload/questionbank/question/que_1758499813.jpg\" style=\"height:110px; width:438px\" /></p>', 'Medium', 'textarea', NULL, 3, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-22 00:10:37', NULL),
(252681, '86,90,227,513,2342', '<p>The logic circuit shown below has the input waveforms &#39;A&#39; and &#39;B&#39; as shown. draw the correct output waveform. Also make the truth table.</p>\r\n\r\n<p><img alt=\"\" src=\"https://school.achievam.com/upload/questionbank/question/que_1758500047.jpg\" style=\"height:110px; width:546px\" /></p>\r\n\r\n<p>&nbsp;</p>', 'Medium', 'textarea', NULL, 3, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-22 00:14:26', NULL),
(252682, '86,90,227,513,2342', '<p>Draw the output waveform at X, using the given inputs A and B for the logic circuit shown below. Also, identify the logic operation performed by this circuit.</p>\r\n\r\n<p><img alt=\"\" src=\"https://school.achievam.com/upload/questionbank/question/que_1758500247.jpg\" style=\"height:110px; width:323px\" /></p>', 'Medium', 'textarea', NULL, 3, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-22 00:17:55', NULL),
(252683, '86,90,227,228,2342', '<p>The output waveform of the given logical circuit for the following inputs A and B as shown below, is</p>\r\n\r\n<p><img alt=\"\" src=\"https://school.achievam.com/upload/questionbank/question/que_1758500538.jpg\" style=\"height:150px; width:445px\" /></p>', 'Medium', 'radio', NULL, 1, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-22 00:23:15', NULL),
(252684, '86,90,227,228,2342', '<p>The logic circuit shown below has the input wave forms A and B as shown in the figure. Pick out the correct output waveform.</p>\r\n\r\n<p><img alt=\"\" src=\"https://school.achievam.com/upload/questionbank/question/que_1758500677.jpg\" style=\"height:220px; width:379px\" /></p>', 'Medium', 'textarea', NULL, 2, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-22 00:24:59', NULL),
(252685, '86,90,227,228,2342', '<p>The figure shows input waveforms A and B to a logic gate. Draw the output waveform for an OR gate. Write the truth table for this logic gate and draw its logic symbol.&nbsp;</p>\r\n\r\n<p><img alt=\"\" src=\"https://school.achievam.com/upload/questionbank/question/que_1758500854.jpg\" style=\"height:200px; width:258px\" /></p>', 'Medium', 'textarea', NULL, 2, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-22 00:27:52', NULL),
(252686, '86,90,227,228,2342', '<p>The figure shows input waveforms A and B to a logic gate. Draw the output waveform for an OR gate. Write the truth table for this logic gate and draw its logic symbol.&nbsp;</p>\r\n\r\n<p><img alt=\"\" src=\"https://school.achievam.com/upload/questionbank/question/que_1758500914.jpg\" style=\"height:199px; width:315px\" /></p>', 'Medium', 'textarea', NULL, 2, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-22 00:28:48', NULL),
(252687, '86,90,227,228,2342', '<p>Drawn the output waveform at X, using thye given inputs A and B for the logic circuit shown in Fig. Also identify the logic operation performed by this circuit.</p>\r\n\r\n<p><img alt=\"\" src=\"https://school.achievam.com/upload/questionbank/question/que_1758501031.jpg\" style=\"height:100px; width:563px\" /></p>', 'Medium', 'textarea', NULL, 2, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-22 00:30:51', NULL),
(252688, '86,90,227,228,2342', '<p>(a) In the figure given below the input waveform is converted into the output waveform by a device &lsquo;X&rsquo;. Name the device and draw its circuit diagram.</p>\r\n\r\n<p><img alt=\"\" src=\"https://school.achievam.com/upload/questionbank/question/que_1758501774.jpg\" style=\"height:100px; width:420px\" /></p>\r\n\r\n<p>(b) In a half-wave rectifier, if the input AC frequency is 50 Hz, what is the frequency of the output waveform?</p>', 'Medium', 'textarea', NULL, 3, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-22 00:47:30', NULL),
(252689, '86,90,227,228,2342', '<p>&quot;Explain how the input and output frequencies differ in a half-wave rectifier and a full-wave rectifier. Support your answer with suitable diagrams and expressions.&quot;</p>', 'Medium', 'textarea', NULL, 3, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-22 00:47:54', NULL),
(252690, '86,90,227,228,2342', '<p>For a full-wave rectifier, if the input frequency is 60 Hz, what is the frequency of the output waveform?</p>', 'Medium', 'textarea', NULL, 1, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-22 00:48:53', NULL),
(252691, '86,90,227,228,2342', '<p>Why is a filter circuit required after a rectifier? What would happen if we use a rectifier without a filter?</p>', 'Medium', 'textarea', NULL, 3, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-22 00:50:51', NULL),
(252692, '86,90,227,228,2342', '<p>Explain how a capacitor filter reduces the ripples in a rectifier output. Why is it more effective at higher load resistance?</p>', 'Medium', 'textarea', NULL, 3, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-22 00:52:55', NULL),
(252693, '86,90,227,517,2342', '<p>If the capacitance of the filter capacitor is doubled, how does it affect the DC output voltage and the ripple in the output?</p>', 'Medium', 'textarea', NULL, 1, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-22 00:53:47', NULL),
(252694, '86,90,227,517,2342', '<p>A rectifier circuit with a filter provides almost pure DC output. Why is this output still not suitable for some electronic devices?</p>', 'Medium', 'textarea', NULL, 2, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-22 00:54:27', NULL),
(252695, '86,90,227,517,2342', '<p>Draw the input and output waveforms of a rectifier with a capacitor filter and explain the difference.</p>', 'Medium', 'textarea', NULL, 2, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-22 00:54:55', NULL),
(252696, '86,90,227,517,2342', '<p>(a) Draw the circuit diagram of a half-wave rectifier using a PN junction diode.<br />\r\n(b) Explain the behavior of the diode during the positive and negative half cycles of the input AC.<br />\r\n(c) If the input AC frequency is 50 Hz, calculate the output frequency of the half-wave rectifier.</p>', 'Medium', 'textarea', NULL, 3, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-22 00:58:39', NULL),
(252697, '86,90,227,517,2342', '<p>(a) Draw the circuit diagram of a center-tap full-wave rectifier.<br />\r\n(b) Explain how the two diodes conduct during alternate half cycles of input.<br />\r\n(c) If the input AC has a frequency of 60 Hz, what will be the frequency of the output waveform?</p>', 'Medium', 'textarea', NULL, 3, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-22 00:59:04', NULL),
(252698, '86,90,227,517,2342', '<p>(a) Draw neat input and output waveforms of a half-wave and a full-wave rectifier.<br />\r\n(b) Which rectifier gives double the output frequency of the input? Justify your answer.<br />\r\n(c) If the input AC frequency is 100 Hz, find the output frequency for (i) half-wave rectifier and (ii) full-wave rectifier.</p>', 'Medium', 'textarea', NULL, 3, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-22 00:59:48', NULL),
(252699, '86,90,227,517,2342', '<p>(a) Why is a full-wave rectifier more efficient than a half-wave rectifier?<br />\r\n(b) Draw the input AC waveform and the corresponding output waveform of a full-wave rectifier.<br />\r\n(c) State the relation between input frequency and output frequency in a full-wave rectifier.</p>', 'Medium', 'textarea', NULL, 3, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-22 01:00:40', NULL),
(252700, '86,90,227,517,2342', '<p>The circuit diagram of a half-wave rectifier using a PN junction diode is given below.</p>\r\n\r\n<p><img alt=\"\" src=\"https://school.achievam.com/upload/questionbank/question/que_1758513021.jpg\" style=\"height:140px; width:304px\" /></p>\r\n\r\n<p>(a) Identify the nature of biasing of the diode during the positive half cycle of the input AC.<br />\r\n(b) Draw the corresponding output waveform across the load.<br />\r\n(c) Explain why there is no output during the negative half cycle.</p>', 'Medium', 'textarea', NULL, 3, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-22 03:50:58', NULL),
(252701, '86,90,227,517,2342', '<p>A circuit of a full-wave rectifier using a center-tap transformer is shown.</p>\r\n\r\n<p><img alt=\"\" src=\"https://school.achievam.com/upload/questionbank/question/que_1758513281.jpg\" style=\"height:150px; width:265px\" /></p>\r\n\r\n<p>(a) Explain how diodes D1​ and D2​ conduct during alternate half cycles.<br />\r\n(b) Draw the output waveform across the load resistor.<br />\r\n(c) If the input AC frequency is 50 Hz, calculate the output frequency.</p>', 'Medium', 'textarea', NULL, 3, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-22 03:55:19', NULL),
(252702, '86,90,227,517,2342', '<p>The VI characteristics curve of a PN junction diode is shown.</p>\r\n\r\n<p><img alt=\"\" src=\"https://school.achievam.com/upload/questionbank/question/que_1758513861.jpg\" style=\"height:200px; width:278px\" /></p>\r\n\r\n<p>(a) Identify the region corresponding to forward bias and reverse bias.<br />\r\n(b) Mark the threshold voltage on the graph.<br />\r\n(c) Explain why the current rises sharply after the threshold voltage in forward bias.</p>', 'Medium', 'textarea', NULL, 3, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-22 04:04:56', NULL),
(252703, '86,90,227,517,2342', '<p>A rectifier circuit with a capacitor filter is shown.</p>\r\n\r\n<p><img alt=\"\" src=\"https://school.achievam.com/upload/questionbank/question/que_1758514519.jpg\" style=\"height:160px; width:296px\" /></p>\r\n\r\n<p>(a) Draw the input and output waveforms.<br />\r\n(b) Explain the role of the capacitor in reducing ripples.<br />\r\n(c) Why is the performance of the filter better with a full-wave rectifier than with a half-wave rectifier?</p>', 'Medium', 'textarea', NULL, 3, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-22 04:16:04', NULL),
(252704, '86,90,227,517,2342', '<p>The input AC waveform and two output waveforms are shown: one corresponds to a half-wave rectifier, and the other to a full-wave rectifier.</p>\r\n\r\n<p><img alt=\"\" src=\"https://school.achievam.com/upload/questionbank/question/que_1758534205.jpg\" style=\"height:150px; width:390px\" /></p>\r\n\r\n<p>(a) Identify which waveform belongs to the half-wave rectifier and which to the full-wave rectifier.<br />\r\n(b) State the frequency relation between input and output for each case.<br />\r\n(c) Which rectifier provides higher average DC output? Justify your answer.</p>', 'Medium', 'textarea', NULL, 3, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-22 09:43:58', NULL),
(252705, '86,90,227,517,2342', '<p>(a) Analyse why a PN junction cannot be formed by simply connecting a P-type and N-type semiconductor slab together.<br />\r\n(b) What physical process ensures the creation of the depletion region at the junction?<br />\r\n(c) Explain how the balance between diffusion current and drift current establishes equilibrium in a PN junction.</p>', 'Medium', 'textarea', NULL, 3, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-22 23:46:59', NULL),
(252706, '86,90,227,515,2342', '<p>(a) Evaluate the effect of doping concentration on the width of the depletion region.<br />\r\n(b) Which factor is more dominant in deciding the built-in potential of a PN junction &ndash; the type of doping or the temperature? Justify your answer.<br />\r\n(c) Predict what happens to the junction if external reverse bias is applied beyond the breakdown voltage.</p>', 'Medium', 'textarea', NULL, 3, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-22 23:47:37', NULL),
(252707, '86,90,227,515,2342', '<p>(a) Design a conceptual diagram showing how diffusion of majority carriers leads to the formation of space charge region in a PN junction.<br />\r\n(b) Suggest how the performance of a diode would change if the depletion region width could be externally controlled.<br />\r\n(c) Imagine a semiconductor where no depletion region is formed &ndash; how would rectification be affected?</p>', 'Medium', 'textarea', NULL, 3, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-22 23:47:58', NULL),
(252708, '86,90,227,515,2342', '<p>(a) Why is doping required to form P-type and N-type semiconductors instead of using pure silicon or germanium?<br />\r\n(b) Compare the role of acceptor and donor impurities in determining carrier concentration.<br />\r\n(c) How would the electrical properties of the junction change if both sides of the junction were doped with the same type of impurity?</p>', 'Medium', 'textarea', NULL, 3, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-22 23:48:33', NULL),
(252709, '86,90,227,515,2342', '<p>(a) In solar cells, the PN junction is used differently compared to rectifiers. Analyse how the junction works in generating EMF.<br />\r\n(b) If the depletion region width is made very narrow, what impact will it have on the junction current?<br />\r\n(c) Propose a practical use where controlling drift current is more significant than diffusion current.</p>', 'Medium', 'textarea', NULL, 3, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-22 23:49:08', NULL),
(252710, '86,90,227,515,2342', '<p>Why can&rsquo;t a PN junction be formed by just physically joining P-type and N-type semiconductor slabs?</p>', 'Medium', 'textarea', NULL, 2, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-22 23:49:46', NULL),
(252711, '86,90,227,515,2342', '<p>Define depletion region in a PN junction. Why is it formed?</p>\r\n\r\n<p>&nbsp;</p>', 'Medium', 'textarea', NULL, 2, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-22 23:50:04', NULL),
(252712, '86,90,227,515,2342', '<p>What decides the width of the depletion layer in a PN junction?</p>\r\n\r\n<p>&nbsp;</p>', 'Medium', 'textarea', NULL, 2, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-22 23:50:23', NULL),
(252713, '86,90,227,515,2342', '<p>Explain the role of diffusion current in the formation of a PN junction.</p>', 'Medium', 'textarea', NULL, 2, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-22 23:50:39', NULL),
(252714, '86,90,227,515,2342', '<p>Explain the role of drift current in maintaining equilibrium of a PN junction.</p>', 'Medium', 'textarea', NULL, 2, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-22 23:51:03', NULL),
(252715, '86,90,227,515,2342', '<p>How is a P-type semiconductor formed? Name the majority and minority carriers in it.</p>', 'Medium', 'textarea', NULL, 2, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-23 00:02:29', NULL),
(252716, '86,90,227,515,2342', '<p>How is an N-type semiconductor formed? Name the majority and minority carriers in it.</p>', 'Medium', 'textarea', NULL, 2, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-23 00:02:51', NULL),
(252717, '86,90,227,515,2342', '<p>What is the role of acceptor impurities in a P-type semiconductor?</p>', 'Medium', 'textarea', NULL, 2, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-23 00:03:14', NULL),
(252718, '86,90,227,515,2342', '<p>What is the role of donor impurities in an N-type semiconductor?</p>', 'Medium', 'textarea', NULL, 2, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-23 00:03:38', NULL),
(252719, '86,90,227,515,2342', '<p>Why is doping necessary to make semiconductors useful for electronic devices?</p>', 'Medium', 'textarea', NULL, 2, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-23 00:03:53', NULL),
(252720, '86,90,227,515,2342', '<p>Why does a PN junction diode allow current in one direction only?</p>', 'Medium', 'textarea', NULL, 2, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-23 00:04:09', NULL),
(252721, '86,90,227,515,2342', '<p>How does increasing doping concentration affect the width of the depletion region?</p>', 'Medium', 'textarea', NULL, 2, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-23 00:04:32', NULL),
(252722, '86,90,227,515,2342', '<p>What happens to the built-in potential of a PN junction when the temperature increases?</p>', 'Medium', 'textarea', NULL, 2, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-23 00:04:54', NULL),
(252723, '86,90,227,515,2342', '<p>Differentiate between drift current and diffusion current in a PN junction.</p>', 'Medium', 'textarea', NULL, 2, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-23 00:05:06', NULL),
(252724, '86,90,227,515,2342', '<p>What is the significance of the built-in potential in a PN junction?</p>', 'Medium', 'textarea', NULL, 2, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-23 00:05:22', NULL),
(252725, '86,90,227,515,2342', '<p>Two crystals X and Y are made of pure silicon, doped with arsenic and aluminium respectively.</p>\r\n\r\n<p>(i) Identify the type of extrinsic semiconductors so formed.<br />\r\n(ii) Why is doping of intrinsic semiconductors necessary?<br />\r\n(iii) Compare the majority and minority charge carriers in both X​ and Y​.</p>', 'Medium', 'textarea', NULL, 3, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-23 00:11:52', NULL),
(252726, '86,90,227,515,2342', '<p>The VI characteristics of a PN junction diode are shown for forward and reverse bias.</p>\r\n\r\n<p><img alt=\"\" src=\"https://school.achievam.com/upload/questionbank/question/que_1758586515.jpg\" style=\"height:200px; width:302px\" /></p>\r\n\r\n<p>(i) Explain why the diode offers variable resistance in forward bias. Does it obey Ohm&rsquo;s law?<br />\r\n(ii) Why does the diode current increase sharply only after a certain voltage in forward bias?<br />\r\n(iii) Why is the reverse current very small during reverse bias, and what causes it?</p>', 'Medium', 'textarea', NULL, 3, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-23 00:15:33', NULL),
(252727, '86,90,227,515,2342', '<p>Suppose a pure Si crystal has&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mn>6</mn><mo>&#215;</mo><msup><mn>10</mn><mn>28</mn></msup></math>&nbsp;atoms/m&sup3;. It is doped by 1 ppm concentration of pentavalent As. Calculate the number of electrons and holes, Given that&nbsp;ni=<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mn>0</mn><mo>.</mo><mn>5</mn><mo>&#215;</mo><msup><mn>10</mn><mrow><mn>16</mn><mo>&#160;</mo></mrow></msup><msup><mi>m</mi><mrow><mo>-</mo><mn>3</mn></mrow></msup></math>.</p>', 'Medium', 'textarea', NULL, 2, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-23 00:28:20', NULL),
(252728, '86,90,227,515,2342', '<p>A silicon specimen is made into a&nbsp;P-type semiconductor by dopping, on an average, one helium atoms per&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mn>5</mn><mo>&#215;</mo><msup><mn>10</mn><mn>7</mn></msup></math>silicon atoms. If the number density of atoms in the silicon specimen is <math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mn>5</mn><mo>&#215;</mo><msup><mn>10</mn><mn>28</mn></msup></math>&nbsp;atom/m&sup3; then the number of acceptor atoms in silicon per cubic centimeter will be</p>', 'Medium', 'textarea', NULL, 3, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-23 00:30:50', NULL),
(252729, '86,90,227,515,2342', '<p>(a) Three photodiodes D1, D2, and D3 are made of semiconductors having band gaps of 2.5 eV, 2 eV, and 3 eV respectively. Which of them will not be able to detect light of wavelength 600 nm?</p>', 'Medium', 'textarea', NULL, 3, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-23 00:38:02', NULL),
(252730, '86,90,227,515,2342', '<p>Three LEDs X, Y and Z​ are fabricated using semiconductor materials having band gaps of <strong>1.8 eV, 2.2 eV, and 3.1 eV</strong> respectively.</p>\r\n\r\n<p>(i) Calculate the maximum wavelength of light that can be emitted by each LED.<br />\r\n(ii) Identify which LED will emit visible light.</p>', 'Medium', 'textarea', NULL, 3, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-23 00:40:27', NULL),
(252731, '86,90,227,515,2342', '<p>(a) Three photodiodes D1, D2, and D3 are made of semiconductors having band gaps of 2.5 eV, 2 eV, and 3 eV respectively. Which of them will not be able to detect light of wavelength 600 nm?</p>\r\n\r\n<p>(b) Explain the working principle of an LED with a neat diagram.</p>\r\n\r\n<p>(c)&nbsp;State any two applications of LEDs.&nbsp;</p>\r\n\r\n<p>(d) Propose a project using LEDs to solve a community lighting problem</p>', 'Medium', 'textarea', NULL, 5, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-23 00:50:09', NULL),
(252732, '86,79,112,357,2586', '<p>Three incandescent bulbs of 100W each are connected in series in an electric cicuit. In another circuit another set of three bulbs of the same wattage are connected in parallel to the same source.</p>\r\n\r\n<p>(i) Will the bulb in the two circuits glow with the same brighteness? Justify you answer.</p>\r\n\r\n<p>(ii) Now let one bulb in both the circuits get fused. Will the rest of the bulbs continue to glow in each circuit? Give reason.</p>', 'Medium', 'textarea', '<p>na</p>', 5, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 01:57:51', NULL),
(252733, '86,79,112,357,2586', '<p>What is meant by electrical resistance of a conductor? State how resistance of a conductor is affected when (i) a low current passes through it for a short duration; (ii) a heavy current passes through it for about 30 seconds.</p>', 'Medium', 'textarea', '<p>na</p>', 5, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 01:59:11', NULL),
(252734, '86,79,112,357,2586', '<p>How will you infer with the help of experiment that the same current flows through every part of the circuit containing three resistances in series connected to a battery?</p>', 'Medium', 'textarea', '<p>na</p>', 5, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 02:01:33', NULL),
(252735, '86,79,112,357,2586', '<p>How will you conclude that the same potential difference (voltage) exists across three resistors connected in a parallel arrangement to a batter?</p>', 'Medium', 'textarea', '<p>na</p>', 5, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 02:02:35', NULL),
(252736, '86,79,112,357,2586', '<p>What is Joule&#39;s heating effect? How can it be demonstrated experimentally? List its four applications in daily life.</p>', 'Medium', 'textarea', '<p>na&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;</p>', 5, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 02:05:01', NULL),
(252737, '86,79,112,357,2586', '<p>Find out the following in the electric circuit given in the figure.</p>\r\n\r\n<p><img alt=\"\" src=\"https://school.achievam.com/upload/questionbank/question/que_1758593179.PNG\" style=\"height:150px; width:295px\" /></p>\r\n\r\n<p>(i) Effective resistance of two 8&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#937;</mi></math>&nbsp;resistors in the combination</p>\r\n\r\n<p>(ii) Current flowing through 4<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#937;</mi></math>&nbsp;resistor</p>\r\n\r\n<p>(iii) Pottential difference across 4&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#937;</mi></math>&nbsp;resistor</p>\r\n\r\n<p>(iv) Power dissipated in 4<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#937;</mi></math>&nbsp;resistor</p>\r\n\r\n<p>(v) Difference in ammeter readings, if any</p>', 'Medium', 'textarea', '<p>na</p>', 5, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 02:09:26', NULL),
(252738, '86,79,112,357,2586', '<p>Explain the following:</p>\r\n\r\n<p>(i) Why is tungsten used almost exclusively for filament of electric lamps?</p>\r\n\r\n<p>(ii) Why are the conductors of electric heating devices, such as toasters and electric ions, made of an alloy rather than a pure metal?</p>\r\n\r\n<p>(iii) Why is the series arrangement not used for domestic circuits?</p>\r\n\r\n<p>(iv) How does the resistance of a wire vary with its area of cross section.</p>\r\n\r\n<p>(v) Why are copper and aluminium wires usually used for electricity transmission?</p>', 'Medium', 'textarea', '<p>na</p>', 5, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 02:12:07', NULL),
(252739, '86,79,112,357,2586', '<p>What is the heating effect of current? List two electrical appliances which work on this effect.</p>', 'Medium', 'textarea', '<p>na</p>', 2, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 02:12:42', NULL),
(252740, '86,79,112,357,2586', '<p>State and explain Ohm&#39;s law. Define resistance and give its SI unit. What is meant by 1<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#937;</mi></math>&nbsp;resistance? Draw V-I graph for an ohmic conductor and list its two important features.</p>', 'Medium', 'textarea', '<p>na</p>', 3, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 02:13:47', NULL),
(252741, '86,79,112,357,2586', '<p>The resistance of a wire of 0.01 cm radius is 10<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#937;</mi></math>. If the resistivity of the material of the wire is&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mn>50</mn><mo>&#215;</mo><msup><mn>10</mn><mrow><mo>-</mo><mn>8</mn></mrow></msup><mi>&#937;</mi><mo>-</mo><mi>m</mi></math>, find the length of the wire.</p>', 'Medium', 'textarea', '<p>na</p>', 3, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 02:15:54', NULL),
(252742, '86,79,112,357,2586', '<p>Three resistors of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mn>10</mn><mi>&#937;</mi><mo>,</mo><mo>&#160;</mo><mn>15</mn><mi>&#937;</mi><mo>&#160;</mo><mi>a</mi><mi>n</mi><mi>d</mi><mo>&#160;</mo><mn>5</mn><mi>&#937;</mi></math>&nbsp;are connected in parallel. Find their equivalent resistance.</p>', 'Medium', 'textarea', '<p>na</p>', 3, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 02:16:32', NULL),
(252743, '86,79,112,357,2586', '<p>For the series combination of three resistors, establish the relation&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>R</mi><mo>&#160;</mo><mo>=</mo><mo>&#160;</mo><msub><mi>R</mi><mn>1</mn></msub><mo>&#160;</mo><mo>+</mo><mo>&#160;</mo><msub><mi>R</mi><mn>2</mn></msub><mo>&#160;</mo><mo>+</mo><mo>&#160;</mo><msub><mi>R</mi><mn>3</mn></msub></math>, where the symbols have their usual meanings. Calculate the equivalent&nbsp; resistance of the combination of three resistors of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mn>6</mn><mi>&#937;</mi><mo>,</mo><mo>&#160;</mo><mn>9</mn><mi>&#937;</mi><mo>&#160;</mo><mi>a</mi><mi>n</mi><mi>d</mi><mo>&#160;</mo><mn>18</mn><mi>&#937;</mi></math>&nbsp;joined in parallel</p>', 'Medium', 'textarea', '<p>na</p>', 3, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 02:18:21', NULL),
(252744, '86,79,112,357,2586', '<p>Calculate the resistivity of the material of a wire of length 1, radius 0.01cm, and resistance 20<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#937;</mi></math></p>', 'Medium', 'textarea', '<p>na</p>', 3, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 02:19:03', NULL),
(252745, '86,79,112,357,2586', '<p>If a person has 5 resistors, each of value&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mfrac><mn>1</mn><mn>5</mn></mfrac><mi>&#937;</mi></math>, then the maximum resistance he can obtain by connecting them is</p>', 'Medium', 'textarea', '<p>na</p>', 3, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 02:19:49', NULL),
(252746, '86,79,112,357,2586', '<p>Show how would you join three resistors, each of resistance 9<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#937;</mi></math>&nbsp;so that the equivalent resistance of the combination is (i) 13.5 W and (ii) 6<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#937;</mi></math>?</p>', 'Medium', 'textarea', '<p>na</p>', 2, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 02:20:42', NULL),
(252747, '86,79,112,357,2586', '<p>State ohm&#39;s law?</p>', 'Medium', 'textarea', '<p>na</p>', 2, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 02:20:53', NULL),
(252748, '86,79,112,357,2586', '<p>Some work is done to move a charge Q from infinity to a point A in space. The potential of point A is given as V volt. What is the work done to move this charge from infiity to A in terms of Q and V?</p>', 'Medium', 'textarea', '<p>na</p>', 3, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 02:22:13', NULL),
(252749, '86,79,112,357,2586', '<p>(a) In the following figure, three cylindrical conductors A, B and C are shown along with their lengths and areas of cross-section.</p>\r\n\r\n<p><img alt=\"\" src=\"https://school.achievam.com/upload/questionbank/question/que_1758594263.PNG\" style=\"height:186px; width:343px\" /></p>\r\n\r\n<p>If these three conductors are made of the same material and&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>R</mi><mi>A</mi></msub><mo>,</mo><mo>&#160;</mo><msub><mi>R</mi><mi>B</mi></msub><mo>&#160;</mo><mi>a</mi><mi>n</mi><mi>d</mi><mo>&#160;</mo><msub><mi>R</mi><mi>C</mi></msub></math>&nbsp;are their respective resistances, then find (i)&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>R</mi><mi>A</mi></msub><mo>/</mo><msub><mi>R</mi><mi>B</mi></msub></math>&nbsp;and (ii)&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>R</mi><mi>A</mi></msub><mo>/</mo><msub><mi>R</mi><mi>C</mi></msub></math>.</p>\r\n\r\n<p>(b) If conductor A is made of copper and conductor C is made of constantan (alloy of coper and nickel), then which one of the two will have more electrical resistance and why?</p>', 'Medium', 'textarea', '<p>na</p>', 5, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 02:26:59', NULL),
(252750, '86,79,112,357,2586', '<p>(a) Write the formula for determining the equivalent resistance between A and B of the two combinations (i) and (ii) of three resistors&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>R</mi><mn>1</mn></msub><mo>,</mo><mo>&#160;</mo><msub><mi>R</mi><mn>2</mn></msub><mo>&#160;</mo><mi>a</mi><mi>n</mi><mi>d</mi><mo>&#160;</mo><msub><mi>R</mi><mn>3</mn></msub></math>&nbsp;arranged as follows:</p>\r\n\r\n<p><img alt=\"\" src=\"https://school.achievam.com/upload/questionbank/question/que_1758594619.PNG\" style=\"height:150px; width:175px\" /></p>\r\n\r\n<p>(b) If the equivalent resistance of the arrangements (i) and (ii) are&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>R</mi><mi>s</mi></msub><mo>&#160;</mo><mi>a</mi><mi>n</mi><mi>d</mi><mo>&#160;</mo><msub><mi>R</mi><mi>p</mi></msub></math>&nbsp;respectively, then which one of the following V-I graphs is correctly labelled? Justify your answer.</p>\r\n\r\n<p><img alt=\"\" src=\"https://school.achievam.com/upload/questionbank/question/que_1758594733.PNG\" style=\"height:120px; width:227px\" /></p>', 'Medium', 'textarea', '<p>na</p>', 5, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 02:32:23', NULL),
(252751, '86,79,112,357,2586', '<p>(a) Draw a labelled circuit diagram of the circuit used to show the variation of potential difference across the ends of a resistor with current flowing through it. If you use this circuit, what relation would you find between the voltmeter reading V and the ammeter reading I?</p>\r\n\r\n<p>(b) A wire of given material having length L and area of cross section. A has a resistance of 4<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#937;</mi></math>. Find the resistance of another wire of the same material having length L/2 and area of cross-section 2A.</p>', 'Medium', 'textarea', '<p>na</p>', 5, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 02:35:00', NULL),
(252752, '86,79,112,357,2586', '<p>(a) Three resistors&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>R</mi><mn>1</mn></msub><mo>,</mo><mo>&#160;</mo><msub><mi>R</mi><mn>2</mn></msub><mo>,</mo><mo>&#160;</mo><msub><mi>R</mi><mn>3</mn></msub></math>&nbsp;are connected in parallel, and the combination is connected to a battery, an ammeter, a voltmeter, and a key. Draw suitable circuit diagram to show the arrangement of these circuit components along with the direction of current flowing.</p>\r\n\r\n<p>(b) Calculate the equivalent resistance of the following network:</p>\r\n\r\n<p><img alt=\"\" src=\"https://school.achievam.com/upload/questionbank/question/que_1758595023.PNG\" style=\"height:120px; width:355px\" /></p>', 'Medium', 'textarea', '<p>na</p>', 5, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 02:37:14', NULL),
(252753, '86,79,112,357,2586', '<p>(a) Define electric power and write its SI unit.</p>\r\n\r\n<p>(b) Two bulbs rated 100 W, 220V and 60W, 220V are connected in parallel to an electric mains of 220V. Find the current drawn by the bulbs from the mains.</p>\r\n\r\n<p>&nbsp;</p>', 'Medium', 'textarea', '<p>na</p>', 5, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 02:38:14', NULL),
(252754, '86,79,112,357,2586', '<p>(a) If an appliance of resistance R is connected to a source of voltage V, and current I flows through the appliance for a time t, then find the energy consume by appliance.</p>\r\n\r\n<p>(b) Resistor of resistance 5<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#937;</mi></math>&nbsp;is connected across a battery of 6V. Calculate the energy that dissipates as heat in 10s.</p>', 'Medium', 'textarea', '<p>na</p>', 5, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 02:40:02', NULL),
(252755, '86,79,112,357,2586', '<p>State Joule&#39;s law of heating. Express it mathematically when an appliance of resistance R is connected to a source of voltage V and current I flows through the appliance for a time t.</p>', 'Medium', 'textarea', '<p>na</p>', 3, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 02:41:06', NULL),
(252756, '86,79,112,357,2586', '<p>(a) Calculate the resistance of a metal wire of length 2m and area of cross-section&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mn>1</mn><mo>.</mo><mn>55</mn><mo>&#215;</mo><mo>&#160;</mo><msup><mn>10</mn><mn>6</mn></msup><msup><mi>m</mi><mn>2</mn></msup></math>. (Resistivity of the metal is&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mn>2</mn><mo>.</mo><mn>8</mn><mo>&#160;</mo><mo>&#215;</mo><mo>&#160;</mo><msup><mn>10</mn><mrow><mo>-</mo><mn>81</mn></mrow></msup><mo>&#160;</mo><mi>&#937;</mi><mi>m</mi><mo>)</mo></math></p>\r\n\r\n<p>(b) Why are alloy preferred over pure metal to make the heating elements of electrical heating devices.</p>', 'Medium', 'textarea', '<p>na</p>', 5, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 02:43:33', NULL),
(252757, '86,79,112,357,2586', '<p>If the current I through a resistor is increased by 100% (at constant temperature), the increase in power dissipated will be</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 02:47:45', NULL),
(252758, '86,79,112,357,2586', '<p>In domestic electric circuits, the wiring with 15A current rating is for the electric devices which have&nbsp;</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 02:48:51', NULL),
(252759, '86,79,112,357,2586', '<p>If four identical resistors of resistance 8<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#937;</mi></math>&nbsp;are first connected in series so as to give an effective resistance&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>R</mi><mi>s</mi></msub></math>&nbsp;and then connected in parallel so as to give an effective resistance&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>R</mi><mi>p</mi></msub></math>, then the ratio&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mfrac><msub><mi>R</mi><mi>s</mi></msub><msub><mi>R</mi><mi>p</mi></msub></mfrac></math>&nbsp;is</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 02:50:39', NULL),
(252760, '86,79,112,357,2586', '<p>(a) An electric iron consumes energy at a rate of 880 W when heating is at the maximum rate and 330 W when the heating is at the minimum. If the source voltage is 220V, calculate the current and resistance in each case.</p>\r\n\r\n<p>(b) What is heating affect the electric current?</p>\r\n\r\n<p>(c) Find an expression for the amount of heat produced, when a current passes through a resistance for some time.</p>', 'Medium', 'textarea', '<p>na</p>', 5, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 02:52:16', NULL),
(252761, '86,79,112,357,2586', '<p>A fuse wire repeatedly gets burnt when used with a good heater. It is advised to use fuse wire of</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 02:53:02', NULL),
(252762, '86,79,112,357,2586', '<p>A circuit has a charge of 2C moving through it in 3s. Which electric component in the circuit, if present, will show the current?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 02:55:39', NULL),
(252763, '86,79,112,357,2586', '<p>Electrical resistivity of a given metallic wire depends upon</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 02:56:14', NULL),
(252764, '86,79,112,357,2586', '<p>Unit of electric power may also be expressed as&nbsp;</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 02:56:57', NULL),
(252765, '86,79,112,357,2586', '<p>Which of the following represents voltage?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 02:57:40', NULL),
(252766, '86,79,112,357,2586', '<p>A wire has a resistance of 12<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#937;</mi></math>. It is bent in the form of an equilateral triangle. The effective resistance between any two corners of the triangle is</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 02:58:59', NULL),
(252767, '86,79,112,357,2586', '<p>A series combination of two resistors 1<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#937;</mi></math>&nbsp;each is connected to a 12V battery of internal resistance 0.4<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#937;</mi></math>. The current flowing through it will be</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 03:00:03', NULL),
(252768, '86,79,112,357,2586', '<p>By using only two resistance coils singly, in series, or in parallel one should be able to obtain resistances of 3, 4, 12, and 16<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#937;</mi></math>. The separate resistances of the coils are</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 03:01:08', NULL),
(252769, '86,79,112,357,2586', '<p>An electric bulb is rated 60W, 220V. The resistance of its filament is&nbsp;</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 03:02:25', NULL),
(252770, '86,79,112,357,2586', '<p>Three bulbs of 40W, 60W, 100W are arranged in sereis with 220 V supply. Which bulb has minimum resistance?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 04:21:57', NULL),
(252771, '86,79,112,357,2586', '<p>If a 2 kW boiler is used every day for 1h, then electrical energy consumed by the boiler in 30 day is (1 kWh = 1 unit)</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 04:23:00', NULL),
(252772, '86,79,112,357,2586', '<p>The electrical charge</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 04:24:08', NULL),
(252773, '86,79,112,357,2586', '<p>SI unit of power is</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 04:24:32', NULL),
(252774, '86,79,112,357,2586', '<p>Select odd one out.</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 04:24:57', NULL),
(252775, '86,79,112,357,2586', '<p>Which of the following graphs shows Ohm&#39;s law?</p>\r\n\r\n<p><img alt=\"\" src=\"https://school.achievam.com/upload/questionbank/question/que_1758601584.PNG\" style=\"height:201px; width:355px\" /></p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 04:26:42', NULL),
(252776, '86,79,112,357,2586', '<p>The electrical resistivity is maximum for</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 04:27:09', NULL),
(252777, '86,79,112,357,2586', '<p>In the figure given below, the equivalent resistance between points A and B is 1<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#937;</mi></math>. What is the value of unknown resistance R?</p>\r\n\r\n<p><img alt=\"\" src=\"https://school.achievam.com/upload/questionbank/question/que_1758601727.PNG\" style=\"height:120px; width:190px\" /></p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 04:29:35', NULL),
(252778, '86,79,112,357,2586', '<p>A wire of resistance 9<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#937;</mi></math>&nbsp;is bent in a form of equilateral triangle. The equivalent resistance between any two of its vertices will be</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 04:30:38', NULL),
(252779, '86,79,112,357,2586', '<p>As the temperature of a metallic resistor is increased, the product of its resistivity and conductivity</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 04:31:29', NULL),
(252780, '86,79,112,357,2586', '<p>A fuse wire in domestic wiring has</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 04:32:13', NULL),
(252781, '86,79,112,357,2586', '<p>An electic current of 5A is passing through a circuit containing three wires of the same material arranged in parallel. If the length and the radius of the wires are in the ratio 2 : 3 : 4 and 3 : 4 : 5, respectively, then the ratio of current passing through wires would be</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 04:33:42', NULL),
(252782, '86,79,112,357,2586', '<p>A cell converts&nbsp;</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 04:36:33', NULL),
(252783, '86,79,112,357,2586', '<p>The internal resistance of a cell is the resistance of&nbsp;</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 04:37:16', NULL),
(252784, '86,79,112,357,2586', '<p>In the following figure, the effective resistance between points A and B is</p>\r\n\r\n<p><img alt=\"\" src=\"https://school.achievam.com/upload/questionbank/question/que_1758602305.PNG\" style=\"height:120px; width:174px\" /></p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 04:39:54', NULL),
(252785, '86,79,112,357,2586', '<p>A piece of wire of resistance R is cut into n equal parts. These parts are then connected in parallel. If the equivalent resistance of parallel combination is R&#39;, then&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mfenced><mfrac><mi>R</mi><mrow><mi>R</mi><mo>\'</mo></mrow></mfrac></mfenced></math>&nbsp;is &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 04:45:08', NULL),
(252786, '86,79,112,357,2586', '<p>In a circuit containing two unequal resistances connected in parallel</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 04:46:30', NULL),
(252787, '86,79,112,357,2586', '<p>In the given network, the equivalent resistance between A and B is</p>\r\n\r\n<p><img alt=\"\" src=\"https://school.achievam.com/upload/questionbank/question/que_1758602837.PNG\" style=\"height:120px; width:208px\" /></p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 04:47:40', NULL),
(252788, '86,79,112,357,2586', '<p>The net resistance of two resistors in parallel combination is 2<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#937;</mi></math>&nbsp;and in series combination is 9<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#937;</mi></math>. The two resistances are</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 04:49:09', NULL),
(252789, '86,79,112,357,2586', '<p>The effective resistance between A and B is</p>\r\n\r\n<p><img alt=\"\" src=\"https://school.achievam.com/upload/questionbank/question/que_1758603010.PNG\" style=\"height:120px; width:194px\" /></p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 04:51:18', NULL),
(252790, '86,79,112,357,2586', '<p>Each of the resistance in the network given below is equal to 10<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#937;</mi></math>. A battery of emf 10V is connected across P and Q. The current drawn from the battery by the network is</p>\r\n\r\n<p><img alt=\"\" src=\"https://school.achievam.com/upload/questionbank/question/que_1758603176.PNG\" style=\"height:120px; width:126px\" /></p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 04:53:36', NULL),
(252791, '86,79,112,357,2586', '<p>The equivalent resistance between points X and Y</p>\r\n\r\n<p><img alt=\"\" src=\"https://school.achievam.com/upload/questionbank/question/que_1758603544.PNG\" style=\"height:120px; width:172px\" /></p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 05:00:07', NULL),
(252792, '86,79,112,357,2586', '<p>Two resistors are connected (i) in series and (ii) in parallel. The equivalent resistances in the two cases are 9<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#937;</mi></math>&nbsp;and 2<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#937;</mi></math>, respectively. Then the resistances of the component resistors are</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 05:02:26', NULL);
INSERT INTO `questions` (`id`, `category_id`, `question`, `question_type`, `answer_type`, `subjective_ans`, `marks`, `time`, `added_by`, `status`, `current_url`, `created_at`, `updated_at`) VALUES
(252793, '86,79,112,357,2586', '<p>You are provided three resistances&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mn>2</mn><mi>&#937;</mi><mo>,</mo><mo>&#160;</mo><mn>3</mn><mi>&#937;</mi><mo>&#160;</mo><mi>a</mi><mi>n</mi><mi>d</mi><mo>&#160;</mo><mn>6</mn><mi>&#937;</mi></math>. How will you connect them so as to obtain the equivalent resistance of 4<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#937;</mi></math>?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 05:06:21', NULL),
(252794, '86,79,112,357,2586', '<p>The material of heating element in an electic press has</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 05:07:26', NULL),
(252795, '86,79,112,357,2586', '<p>One volt is equal to</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 05:08:38', NULL),
(252796, '86,79,112,357,2586', '<p>An electric iron draws a current of 15A from a 220 V supply. What is the cost of using iron for 30 min everyday for 15 days if the cost of unit (1 unit = 1 kWh) is Rs 2?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 05:09:31', NULL),
(252797, '86,79,112,357,2586', '<p>When the diameter of a wire is doubled, its resistance becomes</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 05:10:07', NULL),
(252798, '86,79,112,357,2586', '<p>The frequency of direct current is</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 05:10:27', NULL),
(252799, '86,79,112,357,2586', '<p>When&nbsp; 1 J of work done to move a charge of 1C from one point to another point, then the potential difference between two points in a given circuit will be</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 05:11:18', NULL),
(252800, '86,79,112,357,2586', '<p>A comb runs through one&#39;s dry hair attracts small bits of paper. This is due to</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 05:12:18', NULL),
(252801, '86,79,112,357,2586', '<p>According to Ohm&#39;s law, the graph of potential difference and current is</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 05:13:09', NULL),
(252802, '86,79,112,357,2586', '<p>Fuse wire should be placed in the path of_________wire.</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 05:13:35', NULL),
(252803, '86,79,112,357,2586', '<p>Most of the power stations produce</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 05:14:10', NULL),
(252804, '86,79,112,357,2586', '<p>The resistance of a conductor depends</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 05:15:40', NULL),
(252805, '86,79,112,357,2586', '<p>Which two circuit components are connected in parallel in the following circuit diagram?</p>\r\n\r\n<p><img alt=\"\" src=\"https://school.achievam.com/upload/questionbank/question/que_1758604582.PNG\" style=\"height:175px; width:298px\" /></p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 05:17:04', NULL),
(252806, '86,79,112,357,2586', '<p>Which measuring equipment measurs the electric current passing through conductors?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 05:18:17', NULL),
(252807, '86,79,112,357,2586', '<p>It is written 100W-250V on any bulb. Its resistance will be</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 05:19:20', NULL),
(252808, '86,79,112,357,2586', '<p>Out of two bulbs 50 W-220V and 100W-220V, which one will glow brighter</p>\r\n\r\n<p>(A) When connected in series?</p>\r\n\r\n<p>(B) When connected in parallel?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 05:21:36', NULL),
(252809, '86,79,112,357,2586', '<p>Wire of resistance R is stretched to thrice of its original length. What is the new resistance?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 05:22:20', NULL),
(252810, '86,79,112,357,2586', '<p>An electric generator converts</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 05:23:12', NULL),
(252811, '86,79,112,357,2586', '<p>An electric bulb is rated 220V and 100W. When it is operated on 110V, the power consumed will be</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 05:24:05', NULL),
(252812, '86,79,112,357,2586', '<p>What is the unit of electric potential difference?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 05:24:48', NULL),
(252813, '86,79,112,357,2586', '<p>What will be the power consumed by a 50<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#937;</mi></math>&nbsp;wire if it is kept across a potential difference of 200V?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 05:25:43', NULL),
(252814, '86,79,112,357,2586', '<p>Four bulbs rated 100 W each, operate for 6 hours per day. What is the cost of the energy consumed in 30 days at the rate of Rs 5kWh?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 05:26:41', NULL),
(252815, '86,79,112,357,2586', '<p>The electric device which is having more use-time and less electricity consumption is</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 05:27:20', NULL),
(252816, '86,79,112,357,2586', '<p>Which term does not represent electric power?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 05:30:25', NULL),
(252817, '86,79,112,357,2586', '<p>A household consumes 1 kWh of energy per day. This energy in joules is</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 05:31:36', NULL),
(252818, '86,79,112,357,2586', '<p>The maximum number of 60W bulbs that can be run from the main supply of 220V if you do not want to overload a 5 A fuse is</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 05:32:19', NULL),
(252819, '86,79,112,357,2586', '<p>Calculate the number of electrons constituting one coulomb of charge.</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 05:33:50', NULL),
(252820, '86,79,112,357,2586', '<p>If a conductor is folded 8 times, then the resistance will be</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 05:34:23', NULL),
(252821, '86,79,112,357,2586', '<p>If R is the resistance, I is the current flowing, and V is the potential difference across a conductor at constant temperature, then Ohm&#39;s law is</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 05:36:31', NULL),
(252822, '86,79,112,357,2586', '<p>How much energy in kWh is consumed in operating two 200-W bulbs for 10 hours per day in a month ( 30 days)?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 05:39:58', NULL),
(252823, '86,79,112,357,2586', '<p>Three voltmeters, all having different resistances, are joined as shown in the figure. When somepotential difference is applied across A and B, their readings are&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>V</mi><mn>1</mn></msub><mo>,</mo><mo>&#160;</mo><msub><mi>V</mi><mn>2</mn></msub><mo>&#160;</mo><mi>a</mi><mi>n</mi><mi>d</mi><mo>&#160;</mo><msub><mi>V</mi><mn>3</mn></msub></math></p>\r\n\r\n<p><img alt=\"\" src=\"https://school.achievam.com/upload/questionbank/question/que_1758606106.PNG\" style=\"height:120px; width:251px\" /></p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 05:44:23', NULL),
(252824, '86,79,112,357,2586', '<p>For equal resistors are connected in series with a battery that dissipate power of 10W. The power dissipated through any of them if connected across the same battery will be</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 05:45:41', NULL),
(252825, '86,79,112,357,2586', '<p>The resistance of a bulb marked 220V, 10W is</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 05:46:29', NULL),
(252826, '86,79,112,357,2586', '<p>In the given circuit diagram, the value of resistance X(in ohm) when the bridge is balanced will be</p>\r\n\r\n<p><img alt=\"\" src=\"https://school.achievam.com/upload/questionbank/question/que_1758606468.PNG\" style=\"height:140px; width:189px\" /></p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 05:48:38', NULL),
(252827, '86,79,112,357,2586', '<p>Two resistros&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>R</mi><mn>1</mn></msub><mo>&#160;</mo><mo>=</mo><mo>&#160;</mo><mn>6</mn><mi>&#937;</mi><mo>&#160;</mo><mi>a</mi><mi>n</mi><mi>d</mi><mo>&#160;</mo><msub><mi>R</mi><mn>2</mn></msub><mo>&#160;</mo><mo>=</mo><mo>&#160;</mo><mn>12</mn><mi>&#937;</mi></math>&nbsp;are connected in parallel to a source of voltage V and a current I is flowing in the circuit. If&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>Q</mi><mn>1</mn></msub><mo>&#160;</mo><mi>a</mi><mi>n</mi><mi>d</mi><mo>&#160;</mo><msub><mi>Q</mi><mn>2</mn></msub></math>&nbsp;are the heat produced in&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>R</mi><mn>1</mn></msub><mo>&#160;</mo><mi>a</mi><mi>n</mi><mi>d</mi><mo>&#160;</mo><msub><mi>R</mi><mn>2</mn></msub></math>, respectively what is&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mfrac><msub><mi>Q</mi><mn>1</mn></msub><msub><mi>Q</mi><mn>2</mn></msub></mfrac></math>?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 05:51:03', NULL),
(252828, '86,79,112,357,2586', '<p>In the circuit shown in figure, the current flowing through 5<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#937;</mi></math>&nbsp;resistance is</p>\r\n\r\n<p><img alt=\"\" src=\"https://school.achievam.com/upload/questionbank/question/que_1758606755.PNG\" style=\"height:120px; width:271px\" /></p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 05:53:10', NULL),
(252829, '86,79,112,357,2586', '<p>On a bulb is written 220V and 60W. Find out the resistance of the bulb and the value of the peak current that can flow through it.</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 05:54:46', NULL),
(252830, '86,79,112,357,2586', '<p>Find equivalent resistance of the system and potential difference across the external resistance in the figure.</p>\r\n\r\n<p><img alt=\"\" src=\"https://school.achievam.com/upload/questionbank/question/que_1758606934.PNG\" style=\"height:92px; width:212px\" /></p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 05:56:07', NULL),
(252831, '86,79,112,357,2586', '<p>A uniform wire when connected directly across a 220V line produces heat H per second. If the wire is divided into n-parts and all parts are connected in parallel across a 220V lines, the heat produced per second will be</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 05:57:51', NULL),
(252832, '86,79,112,357,2586', '<p>Nipermag is an alloy of&nbsp;</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 05:58:43', NULL),
(252833, '86,79,112,357,2586', '<p>If 6.4A current flows continuously for 4s through a circuit, find the number of electrons flowing</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 05:59:54', NULL),
(252834, '86,79,112,357,2586', '<p>Correct order of resistivity of material at&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msup><mn>20</mn><mo>&#8728;</mo></msup><mi>C</mi></math></p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 06:01:23', NULL),
(252835, '86,79,112,357,2586', '<p>The value of equivalent resistance between the point A and B in the given circuit will be</p>\r\n\r\n<p><img alt=\"\" src=\"https://school.achievam.com/upload/questionbank/question/que_1758607358.PNG\" style=\"height:120px; width:199px\" /></p>\r\n\r\n<p>&nbsp;</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 06:03:19', NULL),
(252836, '86,79,112,357,2586', '<p>A wire of resistance R is stretched to twice of its original length. Its new resistance will be</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 06:04:08', NULL),
(252837, '86,79,112,357,2586', '<p>A certain household has consumed 200 units of energy during a month. Its value in joules will be</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 06:05:42', NULL),
(252838, '86,79,112,357,2586', '<p>A wire of resistance R is stretched to twice of its original length. Its new resistance will be</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 12:03:38', NULL),
(252839, '86,79,112,357,2586', '<p>In the following question a statement assertion (A) is followed by a corresponding statement of reason (R). Of the following, choose the correct one.</p>\r\n\r\n<p>(A) If both A &amp; R are true, and R is the correct explanation of A.</p>\r\n\r\n<p>(B) If both A &amp; R are true, but R is not the correct explanation of A.</p>\r\n\r\n<p>(C) A is true, but R is false</p>\r\n\r\n<p>(D) A is false, but R is true.</p>\r\n\r\n<p>Assertion: A 60 W-220 V bulb glows more than 100 W-220 V bulb when they are connected in series across a source of potential difference.</p>\r\n\r\n<p>Reason : When they are connected in series, resistance of 100W bulb will be more.</p>\r\n\r\n<p>&nbsp;</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 12:07:01', NULL),
(252840, '86,79,112,357,2586', '<p>In the following question a statement assertion (A) is followed by a corresponding statement of reason (R). Of the following, choose the correct one.</p>\r\n\r\n<p>(A) If both A &amp; R are true, and R is the correct explanation of A.</p>\r\n\r\n<p>(B) If both A &amp; R are true, but R is not the correct explanation of A.</p>\r\n\r\n<p>(C) A is true, but R is false</p>\r\n\r\n<p>(D) A is false, but R is true.</p>\r\n\r\n<p>Assertion : A voltmeter and ammeter can be used to measured both the resistance and power.</p>\r\n\r\n<p>Reason: Power is proportional to voltage and current.</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 12:07:51', NULL),
(252841, '86,79,112,357,2586', '<p>If a wire of resistance 1<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#937;</mi></math>&nbsp;is stretched to double its length, then resistance will be</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 12:09:15', NULL),
(252842, '86,79,112,357,2586', '<p><math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>V</mi><msup><mi>m</mi><mrow><mo>-</mo><mn>1</mn></mrow></msup></math>&nbsp;is the unit of</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 12:09:57', NULL),
(252843, '86,79,112,357,2586', '<p>What will be the power consumed by a 25<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#937;</mi></math>&nbsp;wire if it is put across mains of 250V?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 12:10:45', NULL),
(252844, '86,79,112,357,2586', '<p>The value of current I and voltage V in the given circuit will be:</p>\r\n\r\n<p><img alt=\"\" src=\"https://school.achievam.com/upload/questionbank/question/que_1758629489.PNG\" style=\"height:120px; width:287px\" /></p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 12:12:01', NULL),
(252845, '86,79,112,357,2586', '<p>In the circuit given below what will be the ratio of current in the uper arm &#39;R&#39; and lower arm &#39;R&#39;</p>\r\n\r\n<p><img alt=\"\" src=\"https://school.achievam.com/upload/questionbank/question/que_1758629576.PNG\" /></p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 12:13:20', NULL),
(252846, '86,79,112,357,2586', '<p>What will be the equivalent resistance between points A and B in the given circuit.</p>\r\n\r\n<p><img alt=\"\" src=\"https://school.achievam.com/upload/questionbank/question/que_1758629646.PNG\" style=\"height:164px; width:171px\" /></p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 12:14:33', NULL),
(252847, '86,79,112,357,2586', '<p>If resistances are connected in series</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 12:16:36', NULL),
(252848, '86,79,112,357,2586', '<p>In an electric heater, 1500W is marked. If this heater is used for 10 hours continuously, then what will be the consumption of energy?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 12:17:29', NULL),
(252849, '86,79,112,357,2586', '<p>Two lamps, A rated 100 W-220V and B rated 60 W-220 V are connected in series to electric main supply of 220V. The ratio of heat produced in lamp A and to the lamp B swould be</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 12:18:43', NULL),
(252850, '86,79,112,357,2586', '<p>Four 20&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#937;</mi></math>&nbsp;resistors are connected in series and the combination is connected to a 20V emf device. The potential difference across any one of the resistors is</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 12:19:42', NULL),
(252851, '86,79,112,357,2586', '<p>Which of the following is incorrect?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 12:20:55', NULL),
(252852, '86,79,112,357,2586', '<p>The power of electric power station is 200 MW, the electrical energy produced by it daily will be</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 12:21:57', NULL),
(252853, '86,79,112,357,2586', '<p>When three equal resistors are connected in series with a source of electromotive force (emf), it dissipiates 10 W of power dissipates when same resistors are connected in parallel with the same of emf?</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 12:26:28', NULL),
(252854, '86,79,112,357,2586', '<p>In house electrical circuits, the fuse wire for safety should be of</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 12:27:22', NULL),
(252855, '86,79,112,357,2586', '<p>What is equivalent resistance of the following arrangement between M and N?</p>\r\n\r\n<p><img alt=\"\" src=\"https://school.achievam.com/upload/questionbank/question/que_1758630488.PNG\" style=\"height:72px; width:232px\" /></p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 12:28:30', NULL),
(252856, '86,79,112,357,2586', '<p>If current through a resistance is increased by 100% simultaneously reducing resistance value to 25%, the new power dissipated will be</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 12:29:48', NULL),
(252857, '86,79,112,357,2586', '<p>An ammeter can read current upto 5A and it has 20 divisions between the mark 0 and mark 2A on its scale. The least count of the ammeter is</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 12:30:45', NULL),
(252858, '86,79,112,357,2586', '<p>The work done in carryiing a charge of 2<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#956;</mi></math>C from point A to point B is&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mn>6</mn><mo>&#215;</mo><mo>&#160;</mo><msup><mn>10</mn><mrow><mo>-</mo><mn>4</mn></mrow></msup></math>J. The potential difference between these points will be</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 12:31:53', NULL),
(252859, '86,79,112,357,2586', '<p>A electric bulb rated for 500W at 100V is used in a circuit having a 200V supply. The resistance R that must be kept in series with the bulb so that the bulb draws 500W is</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 12:33:17', NULL),
(252860, '86,79,112,357,2586', '<p>A uniform wire of resistance 100<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#937;</mi></math>&nbsp;is ,melted and made in the form of uniform wire, whose length is double that the original. The resistance of the new wire is</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 12:34:50', NULL),
(252861, '86,79,112,357,2586', '<p>Three 6<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#937;</mi></math>&nbsp;resistors are connected in parallel, and the combination is connected to a 15V battery. The current through any one of the resistors will be</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 12:35:41', NULL),
(252862, '86,79,112,357,2586', '<p>Two wires of the same material have lengths L and 2L and cross-sectional area 4A and A. respectively. The ratio of their resistance would be</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 12:36:45', NULL),
(252863, '86,79,112,357,2586', '<p>Three resistances, each of 5<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#937;</mi></math>, are joined according to the figure. The resultant resistance between P and Q will be</p>\r\n\r\n<p><img alt=\"\" src=\"https://school.achievam.com/upload/questionbank/question/que_1758631062.PNG\" /></p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 12:38:28', NULL),
(252864, '86,79,112,357,2586', '<p>Opposition of flow of electric current is called</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 12:39:22', NULL),
(252865, '86,79,112,357,2586', '<p>For the circuit shown in the figure, the value of current in 5<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#937;</mi></math>&nbsp;resistance will be</p>\r\n\r\n<p><img alt=\"\" src=\"https://school.achievam.com/upload/questionbank/question/que_1758631235.PNG\" /></p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 12:40:53', NULL),
(252866, '86,79,112,357,2586', '<p>The electrical resistivity of a conducting wire is K. If its length and area of cross section are doubled, then the new resistivity of the wire will be</p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 12:42:08', NULL),
(252867, '86,79,112,357,2586', '<p>The equivalent resistance of the given circuit between points A and B is</p>\r\n\r\n<p><img alt=\"\" src=\"https://school.achievam.com/upload/questionbank/question/que_1758631374.PNG\" style=\"height:120px; width:171px\" /></p>', 'Medium', 'radio', NULL, 1, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-23 12:44:02', NULL),
(252868, '86,90,219,2342', '<p>Calculate the average value of the AC per cycle for which time function of the current is shown in figure.</p>\r\n\r\n<p><img alt=\"\" src=\"https://school.achievam.com/upload/questionbank/question/que_1758636763.jpg\" style=\"height:100px; width:234px\" /></p>', 'Medium', 'radio', NULL, 1, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-23 14:17:29', NULL),
(252869, '86,90,219,2342', '<p>Calculate the average value of the AC per cycle for which time function of the current is shown in figure.</p>\r\n\r\n<p><img alt=\"\" src=\"https://school.achievam.com/upload/questionbank/question/que_1758636763.jpg\" style=\"height:100px; width:234px\" /></p>', 'Medium', 'textarea', '<p>3I/4</p>', 2, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-23 14:17:59', NULL),
(252870, '86,90,219,2342', '<p>Give expression for average value of a.c. voltage <math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>V</mi><mo>=</mo><msub><mi>V</mi><mi>o</mi></msub><mi>sin</mi><mfenced><mrow><mi>&#969;</mi><mi>t</mi></mrow></mfenced></math>&nbsp;over interval&nbsp;t=0&nbsp;to&nbsp;t=&pi;/&omega;</p>', 'Medium', 'textarea', NULL, 2, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-23 14:22:00', NULL),
(252871, '86,90,219,2342', '<p>Define average value of a.c. over half a cycle. Establish the relationship between the &#39;average value&#39; and the &#39;peak value of an alternating current.</p>', 'Medium', 'textarea', NULL, 2, 1, 1, 1, 'https://school.achievam.com/panel/question/doadd', '2025-09-23 14:26:31', NULL),
(252872, '86,90,219,2342', '<p>The peak value of an alternating voltage applied to a 50<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#937;</mi></math>&nbsp;resistance is 10V. Find the rms current. If the voltage frequency is 100 Hz, write the equation for he instantaneous current.</p>', 'Medium', 'textarea', '<p>na</p>', 2, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-24 06:09:48', NULL),
(252873, '86,90,219,2342', '<p>Calculate the rms value of the alternatitng current shown in Fig. 7.2</p>\r\n\r\n<p><img alt=\"\" src=\"https://school.achievam.com/upload/questionbank/question/que_1758694242.png\" style=\"height:120px; width:134px\" /></p>', 'Medium', 'textarea', '<p>na</p>', 2, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-24 06:11:03', NULL),
(252874, '86,90,219,2342', '<p>An alternating current is given by the equation i =&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>i</mi><mn>1</mn></msub><mo>&#160;</mo><mi>sin</mi><mo>&#160;</mo><mi>&#969;</mi><mi>t</mi><mo>&#160;</mo><mo>+</mo><mo>&#160;</mo><msub><mi>i</mi><mn>2</mn></msub><mo>&#160;</mo><mi>cos</mi><mo>&#160;</mo><mi>&#969;</mi><mi>t</mi></math>. Find the rms value of the current.</p>', 'Medium', 'textarea', '<p>na</p>', 2, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-24 06:12:02', NULL),
(252875, '86,90,219,2342', '<p>If the efective value of current in 50 Hz a.e. circuit is 5.0A, what is (i) the peak value of current (ii) the mean value of current over half a cycle and (iii) the value of current 1/300s after it was zero?</p>', 'Medium', 'textarea', '<p>na</p>', 2, 1, 129, 1, 'https://school.achievam.com/quser/questions/doupdate', '2025-09-24 06:18:39', NULL),
(252876, '86,90,219,2342', '<p>The instantaneous value of an alternative voltage in volts is given by the expression&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>&#949;</mi><mi>t</mi></msub><mo>&#160;</mo><mo>=</mo><mo>&#160;</mo><mn>140</mn><mo>&#160;</mo><mi>sin</mi><mo>&#160;</mo><mn>300</mn><mi>t</mi></math>&nbsp;where t is in second. What is (i) peak value of the voltage, (ii) its rms value and (iii) frequency of the supply?</p>', 'Medium', 'textarea', '<p>na</p>', 2, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-24 06:21:18', NULL),
(252877, '86,90,219,2342', '<p>A resistance of 40<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#937;</mi></math>&nbsp;is connected to an a.c. source of 220V, 50Hz. Find (i) the rms current (ii) the maximum instantaneous current in the resistor and (iii) the time taken by the current to change from its maximum value to the rms value.</p>', 'Medium', 'textarea', '<p>na</p>', 2, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-24 06:22:48', NULL),
(252878, '86,90,219,2342', '<p>The instantaneous emf of an a.c. source is given by&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#949;</mi><mo>&#160;</mo><mo>=</mo><mo>&#160;</mo><mn>300</mn></math>&nbsp;sin 314t. What is the rms value of the emf?</p>', 'Medium', 'textarea', '<p>na</p>', 2, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-24 06:24:59', NULL),
(252879, '86,90,219,2342', '<p>An a.c generator generates an emf which is given by&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#949;</mi><mo>&#160;</mo><mo>=</mo><mo>&#160;</mo><mn>311</mn><mo>&#160;</mo><mi>sin</mi><mo>&#160;</mo><mo>(</mo><mn>240</mn><mi>&#960;</mi><mi>t</mi><mo>)</mo><mo>&#160;</mo><mi>V</mi></math></p>\r\n\r\n<p>Find (i) frequency and (ii) rms value of the emf.</p>', 'Medium', 'textarea', '<p>na</p>', 2, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-24 06:26:19', NULL),
(252880, '86,90,219,2342', '<p>The instantaneous current from an a.c. soure is&nbsp;</p>\r\n\r\n<p>l = 5 sin 314t</p>\r\n\r\n<p>What is the rms value of current?</p>', 'Medium', 'textarea', '<p>na</p>', 2, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-24 06:27:04', NULL),
(252881, '86,90,219,2342', '<p>An alternating voltage given by V = 140 sin 314t is connected across a pure resistor of 50<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#937;</mi></math>. Find (i) the frequency of the source. (ii) the rms current through the resistor.</p>', 'Medium', 'textarea', '<p>na</p>', 2, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-24 06:28:10', NULL),
(252882, '86,90,219,2342', '<p>An alternating emf of peak value 350V is applied across an a.c. ammeter of resistor 100<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#937;</mi></math>. What is the reading of the ammeter?</p>', 'Medium', 'textarea', '<p>na</p>', 2, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-24 06:28:58', NULL),
(252883, '86,90,219,2342', '<p>The effective value of current in a 50 cycle a.c. circuit is 5A. What is the value of current 1/300 second after it was zero?</p>', 'Medium', 'textarea', '<p>na</p>', 2, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-24 06:29:41', NULL),
(252884, '86,90,219,2342', '<p>The peak value of an alternating current of frequency 50 Hz is 14.14A. Find its rms value. HOw much time wil the current take in reaching from 0 to maximum value?</p>', 'Medium', 'textarea', '<p>na</p>', 2, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-24 06:30:50', NULL),
(252885, '86,90,219,2342', '<p>A 100<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#937;</mi></math>&nbsp;iron is connected to a 220V, 50 cycles wall plug. What is (i) peak potential differnce (ii) average pottential difference and (iii) rms current?</p>', 'Medium', 'textarea', '<p>na</p>', 2, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-24 06:32:01', NULL),
(252886, '86,90,219,2342', '<p>The equation of a.c in a circuit is I = 50 sin 100<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#960;t</mi></math>. Find (i) frequency of a.c. (ii) mean value of a.c over positive half cycle. (iii) rms value of current and (iv) the vlaue of current 1/300 second after it was zero.</p>', 'Medium', 'textarea', '<p>na</p>', 2, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-24 06:33:25', NULL),
(252887, '86,90,219,2342', '<p>A 100 Hz a.c. is flowing in a 14 mH coil. Find the reactance.</p>', 'Medium', 'textarea', '<p>na</p>', 2, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-24 06:34:14', NULL),
(252888, '86,90,219,2342', '<p>A pure inductor of 25.0 mH is connected to a source of 220V. Find the inductive reactance and rms current in the circuit if the frequency of the source is 50 Hz.</p>', 'Medium', 'textarea', '<p>na</p>', 2, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-24 06:34:54', NULL),
(252889, '86,90,219,2342', '<p>A coil has an inductance of 1H. (i) At what frequency will it have a reactance of 3142<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#937;</mi></math>? (ii) What should be the capacity of a cpacitor which has the same rectance at that frequecy?</p>', 'Medium', 'textarea', '<p>na</p>', 2, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-24 06:35:58', NULL),
(252890, '86,90,219,2342', '<p>An ideal inductor of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mfrac><mn>5</mn><mi mathvariant=\"normal\">&#960;</mi></mfrac></math>H inductance is connected to a 200V, 50 Hz ac supply.</p>\r\n\r\n<p>(a) Calculate the rms and peak value of current in the inductor.</p>\r\n\r\n<p>(b) What is the phase difference between current through the indcutor and the appllied voltage? How will it change if a small resistance is connected in series with this inductor in the cirucuit?</p>', 'Medium', 'textarea', '<p>na</p>', 2, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-24 06:37:43', NULL),
(252891, '86,90,219,2342', '<p>Alternating emf,&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#949;</mi></math>&nbsp;= 220 sin 100<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#960;</mi></math>t is applied to a circuit containing an inductance of 1/<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#960;</mi></math>&nbsp;H. Write an equation for instantaneous current through the circuit. What will be the reading of an a.c. ammeter if connected in the circuit?</p>', 'Medium', 'textarea', '<p>na</p>', 2, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-24 06:39:13', NULL),
(252892, '86,90,219,2342', '<p>An inductor of inductange 200 mH is connected to an a.c. source of peak emf 210V and frequency 50 Hz. Calculate the peak current. What is the instantaneous voltage of the source when the current is at its peak value?</p>', 'Medium', 'textarea', '<p>na</p>', 2, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-24 06:40:22', NULL),
(252893, '86,90,219,2342', '<p>A 50.0<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#956;</mi><mi>F</mi></math>&nbsp;capacitor is connected to a 220V, 50 hz source. Find the capacitive reactance and the current (rms and peak) in the circuit. If the frequency is doubled, what happens to the capacitive reactance and the current?</p>', 'Medium', 'textarea', '<p>na</p>', 2, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-24 06:41:53', NULL),
(252894, '86,90,219,2342', '<p>A capacitor of 1<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#956;</mi><mi>F</mi></math>&nbsp;is connected to an a.c. source of emf&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#949;</mi></math>&nbsp;= 250 sin 100&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#960;</mi></math>t. Write an equation for instantaneous current through the circuit and give reading of a.c. ammeter connected in the circuit.</p>', 'Medium', 'textarea', '<p>na</p>', 2, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-24 06:43:17', NULL),
(252895, '86,90,219,2342', '<p>A 200 mH (pure) inductor, and a 5<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#956;</mi><mi>F</mi><mo>&#160;</mo></math>(pure) capactor, are connected, one by one, across a sinusoidal ac voltage source V =&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mfenced open=\"[\" close=\"]\"><mrow><mn>70</mn><mo>.</mo><mn>7</mn><mi>sin</mi><mo>(</mo><mn>1000</mn><mi>t</mi><mo>)</mo></mrow></mfenced></math>&nbsp;volt. Obtain the expressions for the current in each case.</p>', 'Medium', 'textarea', '<p>na</p>', 2, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-24 06:44:30', NULL),
(252896, '86,90,219,2342', '<p>What is the inductive reactancd of a coil if current through it is 800 mA and the voltage across it is 40V</p>', 'Medium', 'textarea', '<p>na</p>', 2, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-24 06:44:59', NULL),
(252897, '86,90,219,2342', '<p>Find the value of current through an inductance of 2.0H and negligible resistance, when connected to an a.c. source of 150V and 50Hz.</p>', 'Medium', 'textarea', '<p>na</p>', 2, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-24 06:45:31', NULL),
(252898, '86,90,219,2342', '<p>When an inductor L and a resistor R in series are connected across a 12V, 50 Hz supply, a current of 0.5 A flows in the circuit. The current differs in phase from applied voltage by&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi mathvariant=\"normal\">&#960;</mi><mo>/</mo><mn>3</mn></math>&nbsp;radian. Calculate the value of R</p>', 'Medium', 'textarea', '<p>na</p>', 2, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-24 06:46:54', NULL),
(252899, '86,90,219,2342', '<p>A bulb of resistance 10<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#937;</mi></math>, connected to an inductor of inductance L, is in series with an a.c. source marked 100V, 50 Hz. If the phase angle between the voltage and current is&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#960;</mi><mo>/</mo><mn>4</mn></math>&nbsp;radian, calculate the value of L.</p>', 'Medium', 'textarea', '<p>na</p>', 2, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-24 06:48:10', NULL),
(252900, '86,90,219,2342', '<p>A coil of resistance 300<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#937;</mi></math>&nbsp;and inductance 1.0H is connected across an alternating voltage of frequency 300/2&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#960;</mi><mo>&#160;</mo><mi>H</mi><mi>z</mi></math>. Calculate the phase difference betwen the voltage and current in the circuit.</p>', 'Medium', 'textarea', '<p>na</p>', 2, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-24 06:50:02', NULL),
(252901, '86,90,219,2342', '<p>When an inductor is connected to a 200V dc voltage, a current of 1A flows through it. When the same inductor is connected to a 200V, 50 Hz ac source, only 0.5A current flows. Explain why? Also calculate the self inductance of the inductor.</p>', 'Medium', 'textarea', '<p>na</p>', 2, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-24 06:51:04', NULL),
(252902, '86,90,219,2342', '<p>A current of 1A flows through a coil when it is connected across a DC battery of 100V. If DC battery is replaced by an AC source of 100V and angular frequency 100rad&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msup><mi>s</mi><mrow><mo>-</mo><mn>1</mn></mrow></msup></math>, the current reduces to 0.5A. Find</p>\r\n\r\n<p>(i) impedance of the circuit,</p>\r\n\r\n<p>(ii) self-inductance of coil,</p>\r\n\r\n<p>(iii) phase difference between the voltage and the current.</p>', 'Medium', 'textarea', '<p>na</p>', 2, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-24 06:52:38', NULL),
(252903, '86,90,219,2342', '<p>Calculate the self- inductance of a coil using the following data obtained when an AC source of frequency&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mfenced><mfrac><mn>200</mn><mi mathvariant=\"normal\">&#960;</mi></mfrac></mfenced></math>Hz and a DC source is applied across the coil</p>\r\n\r\n<p><img alt=\"\" src=\"https://school.achievam.com/upload/questionbank/question/que_1758696830.png\" style=\"height:123px; width:379px\" /></p>', 'Medium', 'textarea', '<p>na</p>', 2, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-24 06:53:57', NULL),
(252904, '86,90,219,2342', '<p>An 80V, 800W heater is to be operated on a 100V, 50 Hz supply. Calculate the inductance of the choke required.</p>', 'Medium', 'textarea', '<p>na</p>', 2, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-24 06:54:28', NULL),
(252905, '86,90,219,2342', '<p>A 60-100W electric lamp is to be run on 100V-60Hz mains. (i) Calculate the inductance of the choke required. (ii) If a resistor is&nbsp; to be used in place of choke coil to achieve the same result, calculate its value.</p>', 'Medium', 'textarea', '<p>na</p>', 2, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-24 06:55:37', NULL),
(252906, '86,90,219,2342', '<p>An alternating voltage of 220V is applied across a device X. A current of 0.22A flows in the circuit and it lags behind the applied voltage in phase by&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mfrac><mi mathvariant=\"normal\">&#960;</mi><mn>2</mn></mfrac></math>&nbsp;raduab,</p>\r\n\r\n<p>When the same voltage is applied across another device Y, the current in the circuit remains the same and it is in phase with the applied voltage.</p>\r\n\r\n<p>(i) Name the devices X and Y and,&nbsp;</p>\r\n\r\n<p>(ii) Calculate the current flowing in the circuit when the same voltage is applied across the series combination of X and Y?</p>', 'Medium', 'textarea', '<p>na</p>', 2, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-24 07:01:31', NULL),
(252907, '86,90,219,2342', '<p>(i) An ac circuit as shown in fig. 7.17 has an inductor of inductance L and a resistor of resistance R connected in series. Using the phasar diagram, explain why the voltage in the circuit will lead the current in phase.</p>\r\n\r\n<p>(ii) The potential difference across the resistor is 160 V and that across the inductor is 120. Find the effective value of the applied voltage. If the effective current in the circuit be 1.0A, calculate the total impedance of the circuit.</p>\r\n\r\n<p><img alt=\"\" src=\"https://school.achievam.com/upload/questionbank/question/que_1758697501.png\" style=\"height:149px; width:181px\" /></p>\r\n\r\n<p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Fig 7.17</p>\r\n\r\n<p>(iii) What will be the potential difference in the circuit when direct current is passed through the circuit?</p>\r\n\r\n<p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;</p>', 'Medium', 'textarea', '<p>na</p>', 2, 1, 129, 1, 'https://school.achievam.com/quser/questions/doupdate', '2025-09-24 07:05:27', NULL),
(252908, '86,90,219,2342', '<p>In the circuit shown in Fig. 7.19, the potential difference across the inductor L and resistor R are 120V and 90V respectively and the rms value of current is 3A. Calculate (i) the impedance of the circuit and (ii) the phase angle between the voltage and current.</p>\r\n\r\n<p><img alt=\"\" src=\"https://school.achievam.com/upload/questionbank/question/que_1758697691.png\" style=\"height:127px; width:188px\" /></p>', 'Medium', 'textarea', '<p>na</p>', 2, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-24 07:08:18', NULL),
(252909, '86,90,219,2342', '<p>Calculate the importance of a coil of resistance 3<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#937;</mi></math>&nbsp;and resistance 4<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#937;</mi></math></p>', 'Medium', 'textarea', '<p>na</p>', 2, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-24 07:08:52', NULL),
(252910, '86,90,219,2342', '<p>An inductance coil has a resistance of 100 ohm. When a.c signal of frequency 1000 Hz is applied to the coil, the applied voltage leads the current by&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msup><mn>45</mn><mo>&#8728;</mo></msup></math>. Calculate the self-inductance of the coil.</p>', 'Medium', 'textarea', '<p>na</p>', 2, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-24 07:11:02', NULL),
(252911, '86,90,219,2342', '<p>An a.c source of 100 V r.m.s, 50 Hz is connected across a 20<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#937;</mi></math>&nbsp;resistor and 2 mH inductor in series. Calculate (i) impedance of the circuit and (ii) r.m.s current in the circuit.</p>', 'Medium', 'textarea', '<p>na</p>', 2, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-24 07:12:06', NULL),
(252912, '86,90,219,2342', '<p>A 100V, 50 Hz a.c. source is connected to a series combination of an inductance on 100 mH and a resistance of 20<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#937;</mi></math>. Calculate the magnitude and phase of the current</p>', 'Medium', 'textarea', '<p>na</p>', 2, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-24 07:12:52', NULL),
(252913, '86,90,219,2342', '<p>A current of 11A flows through a coil, when connected to a 110V d.c. source. When 110 V a.c of 50 Hz is applied to the coil, only 0.5 A current flows. Calculate the (i) resistance (ii) impedance and (iii) inductance of the coil.</p>', 'Medium', 'textarea', '<p>na</p>', 2, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-24 07:14:17', NULL),
(252914, '86,90,219,2342', '<p>An electric lamp is designed to operate at 110 V d.c. and 11 A current. If the lamp is operated on 220V, 50 Hz a.c. source with a coil in series, then the find the inductance of the colil.</p>', 'Medium', 'textarea', '<p>na</p>', 2, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-24 07:15:13', NULL),
(252915, '86,90,219,2342', '<p>A current of 2.0 A if flowing in the LR-circuit shown in Fig.7.20. Find the voltage across the a.c. source and the impedance of the circuit.</p>\r\n\r\n<p><img alt=\"\" src=\"https://school.achievam.com/upload/questionbank/question/que_1758698257.png\" style=\"height:120px; width:121px\" /></p>', 'Medium', 'textarea', '<p>na</p>', 2, 1, 129, 1, 'https://school.achievam.com/quser/questions/doupdate', '2025-09-24 07:16:52', NULL),
(252916, '86,90,219,2342', '<p>Calculate the impedance and the rms current in the a.c. circuit shown in Fig. 7.21.</p>\r\n\r\n<p><img alt=\"\" src=\"https://school.achievam.com/upload/questionbank/question/que_1758698295.png\" style=\"height:120px; width:124px\" /></p>', 'Medium', 'textarea', '<p>na</p>', 2, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-24 07:18:25', NULL),
(252917, '86,90,219,2342', '<p>The virtual current in the a.c. circuit shown in Fig. 7.22 is 1.0A. Find (i) virtual voltage across the coil L, (ii) impedance of the circuit and (ii) reactance of the coil.</p>\r\n\r\n<p><img alt=\"\" src=\"https://school.achievam.com/upload/questionbank/question/que_1758698387.png\" style=\"height:162px; width:205px\" /></p>', 'Medium', 'textarea', '<p>na</p>', 2, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-24 07:19:54', NULL),
(252918, '86,90,219,2342', '<p>A circuit containing a resistance of 50<math xmlns=\"http://www.w3.org/1998/Math/MathML\" class=\"wrs_chemistry\"><mi mathvariant=\"normal\">&#937;</mi></math>&nbsp;and an inductance of&nbsp;<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mfenced><mrow><mn>1</mn><mo>/</mo><mi mathvariant=\"normal\">&#960;</mi></mrow></mfenced></math>&nbsp;H in series is connected to a 200V a.c line of frequency 60 Hz. Find the reactance, impedane, the current in the circuit and the phase difference between the alternating voltage and current.</p>', 'Medium', 'textarea', '<p>na</p>', 2, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-24 07:21:19', NULL),
(252919, '86,90,219,2342', '<p>An a.c. circuit consists of a 220V, 50 Hz supply connected across a 100<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>&#937;</mi></math>&nbsp;resistor. What inductance should be connected in the circuit in series with resistance so that the current is reduced to half?</p>', 'Medium', 'textarea', '<p>na</p>', 2, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-24 07:22:27', NULL),
(252920, '86,90,219,2342', '<p>A long solenoid connected to a 12V d.c. source passes a steady current of 2A. When the solenoid is connected to an a.c. source of 12V at 50 Hz, the current flowing is 1A. Calculate the inductance of the solenoid.</p>', 'Medium', 'textarea', '<p>na</p>', 2, 1, 129, 1, 'https://school.achievam.com/quser/questions/doadd', '2025-09-24 07:23:32', NULL);
