{"id":22082,"date":"2018-11-21T11:32:16","date_gmt":"2018-11-21T06:02:16","guid":{"rendered":"http:\/\/mycbseguide.com\/blog\/?p=22082"},"modified":"2018-12-17T14:26:17","modified_gmt":"2018-12-17T08:56:17","slug":"cbse-question-paper-2014-class-12-chemistry","status":"publish","type":"post","link":"https:\/\/mycbseguide.com\/blog\/cbse-question-paper-2014-class-12-chemistry\/","title":{"rendered":"CBSE Question Paper 2014 class 12 Chemistry"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_76 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/mycbseguide.com\/blog\/cbse-question-paper-2014-class-12-chemistry\/#Class_12_Chemistry_list_of_chapters\" >Class 12 Chemistry list of chapters<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/mycbseguide.com\/blog\/cbse-question-paper-2014-class-12-chemistry\/#CBSE_Question_Paper_2014_class_12_Chemistry\" >CBSE Question Paper 2014 class 12 Chemistry<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/mycbseguide.com\/blog\/cbse-question-paper-2014-class-12-chemistry\/#Childrens_Day_Quiz_on_14th_November_2018_How_to_Participate_Update_the_App_Tap_Test_Series_on_home_screen_Attempt_the_Quiz_online\" >Children's Day Quiz\non 14th November 2018 \nHow to Participate \nUpdate the App\nTap Test Series  on home screen\nAttempt the Quiz online<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/mycbseguide.com\/blog\/cbse-question-paper-2014-class-12-chemistry\/#Update_myCBSEguide_App_Update_to_latest_version_and_enjoy_the_new_look_feel_of_your_favourite_study_app\" >Update myCBSEguide App\nUpdate to latest version and enjoy the new look & feel of your favourite study app.<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/mycbseguide.com\/blog\/cbse-question-paper-2014-class-12-chemistry\/#General_Instructions\" >General Instructions<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/mycbseguide.com\/blog\/cbse-question-paper-2014-class-12-chemistry\/#Chemistry_Question_Paper_2014\" >Chemistry Question Paper 2014<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/mycbseguide.com\/blog\/cbse-question-paper-2014-class-12-chemistry\/#Previous_Year_Question_Paper_for_class_12_in_PDF\" >Previous Year Question Paper for class 12 in PDF<\/a><\/li><\/ul><\/nav><\/div>\n<p><strong>CBSE Question Paper 2014 class 12 Chemistry<\/strong>\u00a0conducted by Central Board of Secondary Education, New Delhi in the month of March 2014. CBSE previous year question papers with the solution are available in the myCBSEguide mobile app and website. The Best CBSE App for students and teachers is myCBSEguide which provides complete study material and practice papers to CBSE schools in India and abroad.<\/p>\n<p style=\"text-align: center;\"><strong>CBSE Question Paper 2014 class 12 Chemistry\u00a0<\/strong><\/p>\n<p style=\"text-align: center;\"><strong><a class=\"button\" href=\"https:\/\/mycbseguide.com\/downloads\/cbse-class-12-chemistry\/1267\/cbse-last-year-papers\/3\/\">Download as PDF<\/a><\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignright\" src=\"https:\/\/media-mycbseguide.s3.ap-south-1.amazonaws.com\/images\/blog\/Class%2012%20Chemistry%20Book%20in%20English.jpg\" alt=\"CBSE Question Paper 2014 class 12 Chemistry\" width=\"124\" height=\"159\" \/><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Class_12_Chemistry_list_of_chapters\"><\/span>Class 12 Chemistry list of chapters<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ol>\n<li>The Solid State<\/li>\n<li>Solutions<\/li>\n<li>Electrochemistry<\/li>\n<li>Chemical Kinetics<\/li>\n<li>Surface Chemistry<\/li>\n<li>General Principles and Processes of Isolation of Elements<\/li>\n<li>The p-Block Elements<\/li>\n<li>The d and f Block Elements<\/li>\n<li>Coordination Compounds<\/li>\n<li>Haloalkanes and Haloarenes<\/li>\n<li>Alcohols, Phenols and Ethers<\/li>\n<li>Aldehydes, Ketones and Carboxylic Acids<\/li>\n<li>Amines<\/li>\n<li>Biomolecules<\/li>\n<li>Polymers<\/li>\n<li>Chemistry in Everyday life<\/li>\n<\/ol>\n<h2><span class=\"ez-toc-section\" id=\"CBSE_Question_Paper_2014_class_12_Chemistry\"><\/span>CBSE Question Paper 2014 class 12 Chemistry<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><!-- Ionic's root component and where the app will load --><\/p>\n<div><!--\n<center>\n\n\n<h3 style=\"background-color: #FDFDDC\"; ><span class=\"ez-toc-section\" id=\"Childrens_Day_Quiz_on_14th_November_2018_How_to_Participate_Update_the_App_Tap_Test_Series_on_home_screen_Attempt_the_Quiz_online\"><\/span><font color=\"red\">Children's Day Quiz<\/font>\non 14th November 2018 <\/br>\n<font color=\"red\">How to Participate <\/font><\/br>\n<font color=\"green\">Update the App<\/font><\/br>\nTap <strong>Test Series <\/strong> on home screen<\/br>\n<font color=\"blue\">Attempt the Quiz online<\/font><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n<\/center>\n\n--><!--\n<center>\n\n\n<h3 style=\"background-color: #FDFDDC\"; ><span class=\"ez-toc-section\" id=\"Update_myCBSEguide_App_Update_to_latest_version_and_enjoy_the_new_look_feel_of_your_favourite_study_app\"><\/span><font color=\"red\">Update myCBSEguide App<\/font>\n<a href=\"https:\/\/play.google.com\/store\/apps\/details?id=in.techchefs.MyCBSEGuide\">Update<\/a> to latest version and enjoy the new look & feel of your favourite study app.<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n<\/center>\n\n--><\/div>\n<h3 style=\"text-align: left;\"><span class=\"ez-toc-section\" id=\"General_Instructions\"><\/span><strong>General Instructions<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ol>\n<li>All questions are compulsory.<\/li>\n<li>Marks for each question are indicated against it.<\/li>\n<li>Question numbers 1 to 8\u00a0are very short-answer questions, carrying 1 mark each.\u00a0Answer these in one word or about one sentence each.<\/li>\n<li>Question numbers 9\u00a0to 18\u00a0are short-answer questions, carrying 2 marks each.\u00a0Answer these in about 30 words each.<\/li>\n<li>Question numbers 19\u00a0to 27\u00a0are short-answer questions of 3 marks each. Answer\u00a0these in about 40 words each.<\/li>\n<li>Question numbers 28\u00a0to 30\u00a0are long-answer questions of 5 marks each. Answer these in about 70 words each.<\/li>\n<li>Use Log Tables, if necessary Use of calculators is not permitted.<\/li>\n<\/ol>\n<hr \/>\n<p><strong>1. Name the depressant which is used to separate ZnS and PbS ores in froth floatation process. [1]<\/strong><\/p>\n<hr \/>\n<p><strong>2. Based on the type of dispersed phase, what type of colloid is micelles? [1]<\/strong><\/p>\n<hr \/>\n<p><strong>3. Arrange the following in the increasing order of their basic character: [1]<\/strong><\/p>\n<p><strong><img decoding=\"async\" style=\"height: 24px; width: 189px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image004.png\" \/><\/strong><\/p>\n<hr \/>\n<p><strong>4. What type of isomerism is exhibited by the following complex: [1]<\/strong><\/p>\n<p><strong><img decoding=\"async\" style=\"height: 29px; width: 134px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image006.png\" \/><\/strong><\/p>\n<hr \/>\n<p><strong>5. Write IUPAC name of the following compound:[1]<\/strong><\/p>\n<p><strong><img decoding=\"async\" id=\"Picture 1\" style=\"height: 60px; width: 187px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image007.png\" \/><\/strong><\/p>\n<hr \/>\n<p><strong>6. Which of the two is more basic and why? [1]<\/strong><\/p>\n<p><img decoding=\"async\" id=\"Picture 2\" style=\"height: 104px; width: 163px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image008.jpg\" \/><\/p>\n<hr \/>\n<p><strong>7. What are biocatalysts? Give an example. [1]<\/strong><\/p>\n<hr \/>\n<p><strong>8. Express\u00a0 the\u00a0 relationship\u00a0 between\u00a0 atomic\u00a0 radius\u00a0 (r)\u00a0 and\u00a0 the\u00a0 edge length (a) in the b.c.c. unit cell. [1]<\/strong><\/p>\n<hr \/>\n<p><strong>9. Write the role of the following: [2]<\/strong><\/p>\n<p><strong>(i)\u00a0 Iodine in the refining of zirconium<\/strong><\/p>\n<p><strong>(ii)\u00a0 Silica in the extraction of copper from copper matte<\/strong><\/p>\n<hr \/>\n<p><strong>10. Name the two most important allotropes of sulphur. Which one of the two is\u00a0 stable\u00a0 at\u00a0 room\u00a0 temperature?\u00a0 What\u00a0 happen\u00a0 when\u00a0 the\u00a0 stable\u00a0 form\u00a0 is heated above <img decoding=\"async\" style=\"height: 21px; width: 52px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image016.png\" \/>\u00a0[2]<\/strong><\/p>\n<p><strong>Or<\/strong><\/p>\n<p><strong>(i)\u00a0 Write\u00a0 the\u00a0 conditions\u00a0 to\u00a0 maximize\u00a0 the\u00a0 yield\u00a0 of <img decoding=\"async\" style=\"height: 24px; width: 48px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image017.png\" \/>\u00a0by contact process.<\/strong><\/p>\n<p><strong>(ii) Why is <\/strong><strong><img decoding=\"async\" style=\"height: 25px; width: 74px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image018.png\" \/>\u00a0for <img decoding=\"async\" style=\"height: 24px; width: 48px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image017.png\" \/>\u00a0in water? [2]<\/strong><\/p>\n<hr \/>\n<p><strong>11.<\/strong> <strong>Complete the following equations: [2]<\/strong><\/p>\n<p><strong><img decoding=\"async\" style=\"height: 25px; width: 187px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image020.png\" \/><\/strong><\/p>\n<p><strong><img decoding=\"async\" style=\"height: 25px; width: 177px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image021.png\" \/><\/strong><\/p>\n<hr \/>\n<p><strong>12. Write the state\u00a0 of hybridization, shape and IUPAC name of the complex <img decoding=\"async\" style=\"height: 33px; width: 105px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image024.png\" \/>\u00a0<img decoding=\"async\" style=\"height: 22px; width: 152px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image025.png\" \/>\u00a0[2]<\/strong><\/p>\n<hr \/>\n<p><strong>13. Write chemical equations when<\/strong><\/p>\n<p><strong>(i)\u00a0 ethyl chloride is treated with alcoholic <img decoding=\"async\" style=\"height: 19px; width: 44px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image027.png\" \/><\/strong><\/p>\n<p><strong>(ii)\u00a0 chlorobenzene is treated with <img decoding=\"async\" style=\"height: 24px; width: 48px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image028.png\" \/>\u00a0in the presence of anhydrous <img decoding=\"async\" style=\"height: 24px; width: 44px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image029.png\" \/>\u00a0[2]<\/strong><\/p>\n<hr \/>\n<p><strong>14.<\/strong> <strong>Write the mechanism of the following reaction: [2]<\/strong><\/p>\n<p><strong><img decoding=\"async\" style=\"height: 25px; width: 258px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image033.png\" \/><\/strong><\/p>\n<hr \/>\n<p><strong>15. Name\u00a0 the\u00a0 different\u00a0 reagents\u00a0 needed\u00a0 to\u00a0 perform\u00a0 the\u00a0 following reactions: [2]<\/strong><\/p>\n<p><strong>(i)\u00a0 Phenol to Benzene<\/strong><\/p>\n<p><strong>(ii)\u00a0 Dehydration of propan-2-ol to propene <\/strong><\/p>\n<p><strong>(iii)\u00a0 Friedel \u2212 Crafts acetylation of anisole<\/strong><\/p>\n<p><strong>(iv)\u00a0 Dehydrogenation of ethanol to ethanol<\/strong><\/p>\n<hr \/>\n<p><strong>16. A solution of <img decoding=\"async\" style=\"height: 26px; width: 70px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image041.png\" \/>\u00a0is electrolyzed between platinum electrodes using a current of <img decoding=\"async\" style=\"height: 22px; width: 74px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image042.png\" \/>\u00a0for <img decoding=\"async\" style=\"height: 22px; width: 73px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image043.png\" \/>. What mass of nickel will be deposited at the cathode? [2]<\/strong><\/p>\n<p><strong><img decoding=\"async\" style=\"height: 22px; width: 201px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image044.png\" \/><img decoding=\"async\" style=\"height: 24px; width: 176px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image045.png\" \/><\/strong><\/p>\n<hr \/>\n<p><strong>17. Define half-life of a reaction. Write the expression of half-life for [2]<\/strong><\/p>\n<p><strong>(i) zero order reaction and<\/strong><\/p>\n<p><strong>(ii) first order reaction.<\/strong><\/p>\n<hr \/>\n<p><strong>18. <\/strong><strong>(a) Which alkyl halide from the following pairs would you expect to react more rapidly by an <img decoding=\"async\" style=\"height: 24px; width: 32px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image054.png\" \/>\u00a0mechanism and why?<\/strong><\/p>\n<p><strong><img decoding=\"async\" id=\"Picture 10\" style=\"height: 59px; width: 379px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image055.png\" \/><\/strong><\/p>\n<p><strong>(b) Racemisation occurs in <img decoding=\"async\" style=\"height: 24px; width: 28px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image056.png\" \/>\u00a0reactions. why? [2]<\/strong><\/p>\n<hr \/>\n<p><strong>19. <\/strong><strong>The following data were obtained during the first order thermal decomposition of <img decoding=\"async\" style=\"height: 24px; width: 49px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image059.png\" \/>\u00a0at a constant volume: [3]<\/strong><\/p>\n<p><strong>\u00a0<img decoding=\"async\" style=\"height: 24px; width: 198px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image060.png\" \/><\/strong><\/p>\n<table class=\"mobile\" border=\"1\" cellspacing=\"0\" cellpadding=\"3\">\n<tbody>\n<tr>\n<td style=\"width: 62.75pt;\"><strong>Experiment<\/strong><\/td>\n<td style=\"width: 58.8pt;\"><strong><img decoding=\"async\" style=\"height: 22px; width: 64px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image061.png\" \/><\/strong><\/td>\n<td style=\"width: 98.7pt;\"><strong>Total pressure\/atm<\/strong><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 62.75pt;\"><strong>1<\/strong><\/td>\n<td style=\"width: 58.8pt;\"><strong>0<\/strong><\/td>\n<td style=\"width: 98.7pt;\"><strong>0.4<\/strong><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 62.75pt;\"><strong>2<\/strong><\/td>\n<td style=\"width: 58.8pt;\"><strong>100<\/strong><\/td>\n<td style=\"width: 98.7pt;\"><strong>0.7<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>Calculate the rate constant.<\/strong><\/p>\n<p><strong><img decoding=\"async\" style=\"height: 22px; width: 235px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image062.png\" \/><\/strong><\/p>\n<hr \/>\n<p><strong>20. (i) What type of stoichiometric defect is shown by <img decoding=\"async\" style=\"height: 19px; width: 32px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image072.png\" \/>\u00a0and why?<\/strong><\/p>\n<p><strong>(ii) What type of semiconductor is formed when silicon is doped with As?<\/strong><\/p>\n<p><strong>(iii) Which one of the following is an example of molecular solid:<\/strong><\/p>\n<p><strong><img decoding=\"async\" style=\"height: 24px; width: 80px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image073.png\" \/><\/strong><\/p>\n<p><strong>(iv) What type of substances would make better magnets, ferromagnetic or ferrimagnetic? [3]<\/strong><\/p>\n<hr \/>\n<p><strong>21. <\/strong><strong>(i) Write two advantages of <img decoding=\"async\" style=\"height: 24px; width: 55px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image076.png\" \/>\u00a0fuel cell over ordinary cell.<\/strong><\/p>\n<p><strong>(ii) Equilibrium constant <img decoding=\"async\" style=\"height: 24px; width: 33px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image077.png\" \/>\u00a0for the given cell reaction is 10. Calculate <img decoding=\"async\" style=\"height: 25px; width: 29px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image078.png\" \/>.<\/strong><\/p>\n<p><strong><img decoding=\"async\" style=\"height: 24px; width: 214px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image079.png\" \/>\u00a0[3]<\/strong><\/p>\n<hr \/>\n<p><strong>22. <\/strong><strong>After the ban on plastic bags, students of one school decided to create awareness among the people about the harmful effects of plastic bags on the environment and the Yamuna river. To make it more impactful, they organized a rally by joining hands with other schools and distributed paper bags to vegetable vendors, shopkeepers and departmental stores. All students pledged not to use polythene bags in future to save the Yamuna river. [3]<\/strong><\/p>\n<p><strong>After reading the above passage, answer the following questions:<\/strong><\/p>\n<p><strong>(i) What values are shown by the students?<\/strong><\/p>\n<p><strong>(ii) What are biodegradable polymers? Give one example.<\/strong><\/p>\n<p><strong>(iii) Is polythene a homopolymer or copolymer?<\/strong><\/p>\n<hr \/>\n<p><strong>23. <\/strong><strong>(i) Define Antihistamine with an example.<\/strong><\/p>\n<p><strong>(ii) Which one of the following drugs is an antibiotic:<\/strong><\/p>\n<p><strong>Morphine, Equanil, Chloramphenicol, Aspirin.<\/strong><\/p>\n<p><strong>(iii) Why is use of aspartame limited to cold food and drink? [3]<\/strong><\/p>\n<hr \/>\n<p><strong>24. Define the following terms: [3]<\/strong><\/p>\n<p><strong>(a)\u00a0 Invert sugar<\/strong><\/p>\n<p><strong>(b)\u00a0 Vitamins<\/strong><\/p>\n<p><strong>(c)\u00a0 Nucleoside<\/strong><\/p>\n<hr \/>\n<p><strong>25.<\/strong> <strong>(a) What are the different oxidation states exhibited by the lanthanoids?<\/strong><\/p>\n<p><strong>(b) Write two characteristics of the transition elements.<\/strong><\/p>\n<p><strong>(c) Which of the 3d-block elements may not be regarded as the transition elements and why? [3]<\/strong><\/p>\n<p style=\"text-align: center;\"><strong>OR<\/strong><\/p>\n<p><strong>Assign suitable reasons for the following:<\/strong><\/p>\n<p><strong>(a) The <img decoding=\"async\" style=\"height: 22px; width: 37px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image086.png\" \/>\u00a0compounds are more stable than <img decoding=\"async\" style=\"height: 22px; width: 33px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image087.png\" \/>\u00a0towards oxidation to their +3 state.<\/strong><\/p>\n<p><strong>(b) In the 3d series from <img decoding=\"async\" style=\"height: 22px; width: 166px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image088.png\" \/>\u00a0the enthalpy of atomization of <img decoding=\"async\" style=\"height: 19px; width: 23px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image089.png\" \/>\u00a0is the lowest.<\/strong><\/p>\n<p><strong>(c) <img decoding=\"async\" style=\"height: 22px; width: 31px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image090.png\" \/>\u00a0is colourless in aqueous solution whereas <img decoding=\"async\" style=\"height: 22px; width: 28px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image091.png\" \/>\u00a0is coloured. [3]<\/strong><\/p>\n<hr \/>\n<p><strong>26. <\/strong><strong>(a) What are the different oxidation states exhibited by the lanthanoids?<\/strong><\/p>\n<p><strong>(b) Write two characteristics of the transition elements.<\/strong><\/p>\n<p><strong>(c) Which of the 3d-block elements may not be regarded as the transition elements and why? [3]<\/strong><\/p>\n<p><strong>OR<\/strong><\/p>\n<p><strong>Assign suitable reasons for the following:<\/strong><\/p>\n<p><strong>(a) The <img decoding=\"async\" style=\"height: 22px; width: 37px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image086.png\" \/>\u00a0compounds are more stable than <img decoding=\"async\" style=\"height: 22px; width: 33px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image087.png\" \/>\u00a0towards oxidation to their +3 state.<\/strong><\/p>\n<p><strong>(b) In the 3d series from <img decoding=\"async\" style=\"height: 22px; width: 166px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image088.png\" \/>\u00a0the enthalpy of atomization of <img decoding=\"async\" style=\"height: 19px; width: 23px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image089.png\" \/>\u00a0is the lowest.<\/strong><\/p>\n<p><strong>(c) <img decoding=\"async\" style=\"height: 22px; width: 31px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image090.png\" \/>\u00a0is colourless in aqueous solution whereas <img decoding=\"async\" style=\"height: 22px; width: 28px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image091.png\" \/>\u00a0is coloured. [3]<\/strong><\/p>\n<hr \/>\n<p><strong>26. <\/strong><strong>(a) Write the expression for the Freundlich adsorption isotherm for the adsorption of gases on solids, in the form of an equation.<\/strong><\/p>\n<p><strong>(b) What are the dispersed phase and dispersion medium of butter?<\/strong><\/p>\n<p><strong>(c) A delta is formed at the meeting place of sea and river water. Why? [3]<\/strong><\/p>\n<hr \/>\n<p><strong>27. <\/strong><strong>Give the structures of A, B and C in the following reactions: [3]<\/strong><\/p>\n<p><strong><img decoding=\"async\" style=\"height: 25px; width: 198px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image097.png\" \/><img decoding=\"async\" style=\"height: 28px; width: 86px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image098.png\" \/><\/strong><\/p>\n<p><strong><img decoding=\"async\" style=\"height: 25px; width: 241px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image099.png\" \/><img decoding=\"async\" style=\"height: 22px; width: 121px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image100.png\" \/><\/strong><\/p>\n<hr \/>\n<p><strong>28. <\/strong><strong>(a) Account for the following:<\/strong><\/p>\n<p><strong>(i) <img decoding=\"async\" style=\"height: 19px; width: 20px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image107.png\" \/>\u00a0is strong oxidizing agent in the + 5 state.<\/strong><\/p>\n<p><strong>(ii) <img decoding=\"async\" style=\"height: 24px; width: 35px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image108.png\" \/>\u00a0is known but <img decoding=\"async\" style=\"height: 24px; width: 36px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image109.png\" \/>\u00a0is not known.<\/strong><\/p>\n<p><strong>(iii) Iron dissolves in <img decoding=\"async\" style=\"height: 19px; width: 33px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image110.png\" \/>\u00a0to form <img decoding=\"async\" style=\"height: 23px; width: 43px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image111.png\" \/>\u00a0and not <img decoding=\"async\" style=\"height: 24px; width: 46px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image112.png\" \/><\/strong><\/p>\n<p><strong>(b) Draw the structures of the following:<\/strong><\/p>\n<p><strong><img decoding=\"async\" style=\"height: 24px; width: 65px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image113.png\" \/><\/strong><\/p>\n<p><strong><img decoding=\"async\" style=\"height: 24px; width: 71px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image114.png\" \/>\u00a0[5]<\/strong><\/p>\n<p><strong>Or<\/strong><\/p>\n<p><strong>(a) Draw the structures of the following:<\/strong><\/p>\n<p><strong><img decoding=\"async\" style=\"height: 24px; width: 71px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image115.png\" \/><\/strong><\/p>\n<p><strong><img decoding=\"async\" style=\"height: 24px; width: 68px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image116.png\" \/><\/strong><\/p>\n<p><strong>(b) Account for the following:<\/strong><\/p>\n<p><strong>(i) Sulphur in vapour state exhibits paramagnetism.<\/strong><\/p>\n<p><strong>(ii) Unlike xenon, no distinct chemical compound of helium is known.<\/strong><\/p>\n<p><strong>(iii) <img decoding=\"async\" style=\"height: 24px; width: 49px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image117.png\" \/>\u00a0is a stronger reducing agent than <img decoding=\"async\" style=\"height: 24px; width: 52px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image118.png\" \/>\u00a0[5]<\/strong><\/p>\n<hr \/>\n<p><strong>29. <\/strong><strong>(a) Write the products formed when ethanal reacts with the following reagents:<\/strong><\/p>\n<p><strong><img decoding=\"async\" style=\"height: 25px; width: 188px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image127.png\" \/><\/strong><\/p>\n<p><strong><img decoding=\"async\" style=\"height: 22px; width: 153px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image128.png\" \/><\/strong><\/p>\n<p><strong><img decoding=\"async\" style=\"height: 24px; width: 98px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image129.png\" \/>\u00a0in the presence of dilute <img decoding=\"async\" style=\"height: 19px; width: 49px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image130.png\" \/>.<\/strong><\/p>\n<p><strong>(b) Give simple chemical tests to distinguish between the following pairs of compounds:<\/strong><\/p>\n<p><strong>(i) Benzoic acid and Ethyl benzoate<\/strong><\/p>\n<p><strong>(ii) Propanal and Butan-2-one [5]<\/strong><\/p>\n<p><strong>OR<\/strong><\/p>\n<p><strong>(a) Account for the following:<\/strong><\/p>\n<p><strong>(i) <img decoding=\"async\" style=\"height: 24px; width: 67px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image131.png\" \/>\u00a0is more reactive than <img decoding=\"async\" style=\"height: 24px; width: 83px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image132.png\" \/>\u00a0towards reaction with <img decoding=\"async\" style=\"height: 19px; width: 43px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image133.png\" \/><\/strong><\/p>\n<p><strong>(ii) There are two <img decoding=\"async\" style=\"height: 24px; width: 92px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image134.png\" \/>\u00a0in semicarbazide <img decoding=\"async\" style=\"height: 24px; width: 124px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image135.png\" \/>\u00a0However, only on eis involved in the formation of semicarbazone.<\/strong><\/p>\n<p><strong>(b) Write the chemical equation to illustrate each of the following name reactions:<\/strong><\/p>\n<p><strong>(i) Rosenmund reduction<\/strong><\/p>\n<p><strong>(ii) Hell-Volhard-Zelinsky reaction<\/strong><\/p>\n<p><strong>(iii) Cannizzaro reaction [5]<\/strong><\/p>\n<hr \/>\n<p><strong>30. (a) State Raoult\u2019s law for a solution containing volatile components. Name the solution which follows Raoult\u2019s law at all concentrations and temperatures. [2]<\/strong><\/p>\n<p><strong>(b) Calculate the boiling point elevation for a solution prepared by adding <img decoding=\"async\" style=\"height: 24px; width: 88px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image148.png\" \/>\u00a0to <img decoding=\"async\" style=\"height: 22px; width: 38px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image149.png\" \/>\u00a0of water. <img decoding=\"async\" style=\"height: 25px; width: 220px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image150.png\" \/><img decoding=\"async\" style=\"height: 25px; width: 230px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image151.png\" \/>\u00a0[3]<\/strong><\/p>\n<p><strong>Or<\/strong><\/p>\n<p><strong>(a) Define the following terms: [3]<\/strong><\/p>\n<p><strong>(i) Azeotrope<\/strong><\/p>\n<p><strong>(ii) Osmotic pressure<\/strong><\/p>\n<p><strong>(iii) Colligative properties<\/strong><\/p>\n<p><strong>(b) Calculate the molarity of <img decoding=\"async\" style=\"height: 22px; width: 83px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image152.png\" \/>\u00a0solution of <img decoding=\"async\" style=\"height: 24px; width: 48px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image017.png\" \/>\u00a0if the density of the solution is <img decoding=\"async\" style=\"height: 24px; width: 84px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image153.png\" \/>\u00a0<img decoding=\"async\" style=\"height: 25px; width: 238px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/chemistry\/2014_09\/image154.png\" \/>\u00a0[2]<\/strong><\/p>\n<p style=\"text-align: center;\"><strong>These are questions only. To view and download complete question paper with solution install myCBSEguide App from google play store or login to our\u00a0<a href=\"https:\/\/mycbseguide.com\/dashboard\/\">student dashboard<\/a>.<\/strong><\/p>\n<p style=\"text-align: center;\"><b><strong><a class=\"button\" href=\"https:\/\/play.google.com\/store\/apps\/details?id=in.techchefs.MyCBSEGuide&amp;referrer=utm_source%3Dmycbse_bottom%26utm_medium%3Dtext%26utm_campaign%3Dmycbseads\">Download myCBSEguide App<\/a><\/strong><\/b><\/p>\n<div>\n<h2><span class=\"ez-toc-section\" id=\"Chemistry_Question_Paper_2014\"><\/span>Chemistry Question Paper 2014<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Download class 12 Chemistry question paper with solution from best CBSE App the myCBSEguide. CBSE class 12 Chemistry question paper 2014 in PDF format with solution will help you to understand the latest question paper pattern and marking scheme of the CBSE board examination. You will get to know the difficulty level of the question paper. CBSE question papers 2014 for class 12 Chemistry have 30 questions with solution.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Previous_Year_Question_Paper_for_class_12_in_PDF\"><\/span>Previous Year Question Paper for class 12 in PDF<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>CBSE question papers 2018, 2017, 2016, 2015, 2014, 2013, 2012, 2011, 2010, 209, 2008, 2007, 2006, 2005 and so on for all the subjects are available under this download link. Practicing real question paper certainly helps students to get confidence and improve performance in weak areas.<\/p>\n<ul>\n<li><a href=\"http:\/\/mycbseguide.com\/downloads\/cbse-class-12-physics\/1251\/cbse-last-year-papers\/3\/\">Physics<\/a><\/li>\n<li><a href=\"http:\/\/mycbseguide.com\/downloads\/cbse-class-12-chemistry\/1267\/cbse-last-year-papers\/3\/\">Chemistry<\/a><\/li>\n<li><a href=\"http:\/\/mycbseguide.com\/downloads\/cbse-class-12-mathematics\/1284\/cbse-last-year-papers\/3\/\">Mathematics<\/a><\/li>\n<li><a href=\"http:\/\/mycbseguide.com\/downloads\/cbse-class-12-biology\/1298\/cbse-last-year-papers\/3\/\">Biology<\/a><\/li>\n<li><a href=\"http:\/\/mycbseguide.com\/downloads\/cbse-class-12-accountancy\/1315\/cbse-last-year-papers\/3\/\">Accountancy<\/a><\/li>\n<li><a href=\"http:\/\/mycbseguide.com\/downloads\/cbse-class-12-business-studies\/1727\/cbse-last-year-papers\/3\/\">Business Studies<\/a><\/li>\n<li><a href=\"http:\/\/mycbseguide.com\/downloads\/cbse-class-12-economics\/1327\/cbse-last-year-papers\/3\/\">Economics<\/a><\/li>\n<li><a href=\"http:\/\/mycbseguide.com\/downloads\/cbse-class-12-history\/1869\/cbse-last-year-papers\/3\/\">History<\/a><\/li>\n<li><a href=\"http:\/\/mycbseguide.com\/downloads\/cbse-class-12-geography\/1863\/cbse-last-year-papers\/3\/\">Geography<\/a><\/li>\n<li><a href=\"http:\/\/mycbseguide.com\/downloads\/cbse-class-12-political-science\/1879\/cbse-last-year-papers\/3\/\">Political Science<\/a><\/li>\n<li><a href=\"http:\/\/mycbseguide.com\/downloads\/cbse-class-12-physical-education\/1877\/cbse-last-year-papers\/3\/\">Physical Education<\/a><\/li>\n<li><a href=\"http:\/\/mycbseguide.com\/downloads\/cbse-class-12-computer-science\/1851\/cbse-last-year-papers\/3\/\">Computer Science<\/a><\/li>\n<li><a href=\"http:\/\/mycbseguide.com\/downloads\/cbse-class-12-informatics-practices\/1873\/cbse-last-year-papers\/3\/\">Informatics Practices<\/a><\/li>\n<li><a href=\"http:\/\/mycbseguide.com\/downloads\/cbse-class-12-english-core\/1855\/cbse-last-year-papers\/3\/\">English Core<\/a><\/li>\n<li><a href=\"http:\/\/mycbseguide.com\/downloads\/cbse-class-12-hindi-core\/1865\/cbse-last-year-papers\/3\/\">Hindi Core<\/a><\/li>\n<li><a href=\"http:\/\/mycbseguide.com\/downloads\/cbse-class-12-hindi-elective\/1867\/cbse-last-year-papers\/3\/\">Hindi Elective<\/a><\/li>\n<li><a href=\"http:\/\/mycbseguide.com\/downloads\/cbse-class-12\/1250\/\">Other Subjects<\/a><\/li>\n<\/ul>\n<p>To download CBSE Question Paper 2014 class 12 Accountancy, Chemistry, Physics, History, Political Science, Economics, Geography, Computer Science, Home Science, Accountancy, Business Studies and Home Science; do check myCBSEguide app or website. myCBSEguide provides sample papers with solution, test papers for chapter-wise practice, NCERT solutions, NCERT Exemplar solutions, quick revision notes for ready reference, CBSE guess papers and CBSE important question papers. Sample Paper all are made available through\u00a0<a href=\"https:\/\/play.google.com\/store\/apps\/details?id=in.techchefs.MyCBSEGuide&amp;referrer=utm_source%3Dmycbse_bottom%26utm_medium%3Dtext%26utm_campaign%3Dmycbseads\"><strong>the best app for CBSE students<\/strong><\/a>\u00a0and myCBSEguide website.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>CBSE Question Paper 2014 class 12 Chemistry\u00a0conducted by Central Board of Secondary Education, New Delhi in the month of March 2014. CBSE previous year question papers with the solution are available in the myCBSEguide mobile app and website. The Best CBSE App for students and teachers is myCBSEguide which provides complete study material and practice &#8230; <a title=\"CBSE Question Paper 2014 class 12 Chemistry\" class=\"read-more\" href=\"https:\/\/mycbseguide.com\/blog\/cbse-question-paper-2014-class-12-chemistry\/\" aria-label=\"More on CBSE Question Paper 2014 class 12 Chemistry\">Read more<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1346,1014,1434],"tags":[1017,320,1342,80,1566],"class_list":["post-22082","post","type-post","status-publish","format-standard","hentry","category-cbse","category-cbse-question-papers","category-chemistry-cbse-class-12","tag-cbse-questions-papers","tag-chemistry","tag-class-12","tag-last-year-papers","tag-previous-question-paper"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.0 - 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