{"id":4351,"date":"2016-05-14T11:49:00","date_gmt":"2016-05-14T06:19:00","guid":{"rendered":"http:\/\/mycbseguide.com\/blog\/ncert-solutions-class-12-chemistry-solutions-part-2\/"},"modified":"2018-10-22T11:20:06","modified_gmt":"2018-10-22T05:50:06","slug":"ncert-solutions-class-12-chemistry-solutions-part-2","status":"publish","type":"post","link":"https:\/\/mycbseguide.com\/blog\/ncert-solutions-class-12-chemistry-solutions-part-2\/","title":{"rendered":"NCERT Solutions class 12 Chemistry Solutions Part 2"},"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\/ncert-solutions-class-12-chemistry-solutions-part-2\/#NCERT_Class_12_Chemistry_Chapter-wise_Solutions\" >NCERT Class 12 Chemistry Chapter-wise Solutions<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-class-12-chemistry-solutions-part-2\/#CHAPTER_TWO_SOLUTIONS\" >CHAPTER TWO SOLUTIONS<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-class-12-chemistry-solutions-part-2\/#NCERT_Solutions_class_12_Chemistry_Solutions_Part_2\" >NCERT Solutions class 12 Chemistry Solutions Part 2<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-class-12-chemistry-solutions-part-2\/#NCERT_Solutions_class_12_Chemistry\" >NCERT Solutions class 12 Chemistry<\/a><\/li><\/ul><\/nav><\/div>\n<p>NCERT Solutions class 12 Chemistry Solutions Part 2 solutions are available in PDF format for free download. These ncert book chapter wise questions and answers are very helpful for CBSE board exam. CBSE recommends NCERT books and most of the questions in CBSE exam are asked from NCERT text books. Class 12 Chemistry chapter wise NCERT solution for Chemistry part 1 and part 2 for all the chapters can be downloaded from our website and myCBSEguide mobile app for free.<\/p>\n<p style=\"text-align: center;\"><strong>Download\u00a0<a href=\"https:\/\/mycbseguide.com\/downloads\/cbse-class-12-chemistry\/1267\/ncert-solutions\/5\/\">NCERT solutions for Chemistry<\/a>\u00a0as PDF.<\/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=\"NCERT Solutions class 12 Chemistry Solutions Part 2\" width=\"128\" height=\"164\" \/><\/p>\n<h2><span class=\"ez-toc-section\" id=\"NCERT_Class_12_Chemistry_Chapter-wise_Solutions\"><\/span><strong>NCERT Class 12 Chemistry Chapter-wise Solutions<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li>\u00a01 \u2013 The Solid State<\/li>\n<li>2 \u2013 Solutions<\/li>\n<li>3 \u2013 Electrochemistry<\/li>\n<li>4 \u2013 Chemical Kinetics<\/li>\n<li>5 \u2013 Surface Chemistry<\/li>\n<li>6 \u2013 General Principles and Processes of Isolation of Elements<\/li>\n<li>7 \u2013 The p-Block Elements<\/li>\n<li>8 \u2013 The d-and f-Blocks Elements<\/li>\n<li>9 \u2013 Coordination Compounds<\/li>\n<li>10 \u2013 Haloalkanes and Haloarenes<\/li>\n<li>11 \u2013 Alcohols, Phenols and Ethers<\/li>\n<li>12 \u2013 Aldehydes, Ketones and Carboxylic Acids<\/li>\n<li>13 \u2013 Amines<\/li>\n<li>14 \u2013 Biomolecules<\/li>\n<li>15 \u2013 Polymers<\/li>\n<li>16 \u2013 Chemistry in Everyday Life<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"CHAPTER_TWO_SOLUTIONS\"><\/span><strong>CHAPTER TWO SOLUTIONS<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>2.1 Types of Solutions<\/li>\n<li>2.2 Expressing Concentration of Solutions<\/li>\n<li>2.3 Solubility<\/li>\n<li>2.4 Vapour Pressure of Liquid Solutions<\/li>\n<li>2.5 Ideal and Non-Ideal Solutions<\/li>\n<li>2.6 Colligative Properties and Determination of Molar Mass<\/li>\n<li>2.7 Abnormal Molar Masses<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"NCERT_Solutions_class_12_Chemistry_Solutions_Part_2\"><\/span>NCERT Solutions class 12 Chemistry Solutions Part 2<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p style=\"text-align: justify;\">21. Two elements A and B form compounds having formula <img decoding=\"async\" style=\"height: 24px; width: 31px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch02\/image243.png\" \/> and <img decoding=\"async\" style=\"height: 24px; width: 31px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch02\/image244.png\" \/>. When dissolved in 20 g of benzene<img decoding=\"async\" style=\"height: 27px; width: 52px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch02\/image245.png\" \/>, 1 g of AB2 lowers the freezing point by 2.3 K whereas 1.0 g of <img decoding=\"async\" style=\"height: 24px; width: 31px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch02\/image244.png\" \/> lowers it by 1.3 K. The molar depression constant for benzene is <img decoding=\"async\" style=\"height: 24px; width: 92px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch02\/image246.png\" \/>. Calculate atomic masses of A and B.<\/p>\n<p style=\"text-align: justify;\">22. At 300 K, 36 g of glucose present in a litre of its solution has an osmotic pressure of 4.98 bar. If the osmotic pressure of the solution is 1.52 bars at the same temperature, what would be its concentration?<\/p>\n<p style=\"text-align: justify;\">23. Suggest the most important type of intermolecular attractive interaction in the following pairs.<\/p>\n<p style=\"text-align: justify;\">(i) n-hexane and n-octane<\/p>\n<p style=\"text-align: justify;\">(ii) <img decoding=\"async\" style=\"height: 24px; width: 16px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch02\/image259.png\" \/>and <img decoding=\"async\" style=\"height: 24px; width: 36px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch02\/image260.png\" \/><\/p>\n<p style=\"text-align: justify;\">(iii) <img decoding=\"async\" style=\"height: 24px; width: 56px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch02\/image261.png\" \/>and water<\/p>\n<p style=\"text-align: justify;\">(iv) methanol and acetone<\/p>\n<p style=\"text-align: justify;\">(v) acetonitrile <img decoding=\"async\" style=\"height: 24px; width: 56px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch02\/image262.png\" \/>and acetone <img decoding=\"async\" style=\"height: 27px; width: 63px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch02\/image263.png\" \/>.<\/p>\n<p style=\"text-align: justify;\">24. Based on solute-solvent interactions, arrange the following in order of increasing solubility in n-octane and explain. Cyclohexane, KCl, <img decoding=\"async\" style=\"height: 24px; width: 56px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch02\/image264.png\" \/>,<img decoding=\"async\" style=\"height: 24px; width: 54px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch02\/image265.png\" \/>.<\/p>\n<p style=\"text-align: justify;\">25. Amongst the following compounds, identify which are insoluble, partially soluble and highly soluble in water?<\/p>\n<p style=\"text-align: justify;\">(i) phenol<\/p>\n<p style=\"text-align: justify;\">(ii) toluene<\/p>\n<p style=\"text-align: justify;\">(iii) formic acid<\/p>\n<p style=\"text-align: justify;\">(iv) ethylene glycol<\/p>\n<p style=\"text-align: justify;\">(v) chloroform<\/p>\n<p style=\"text-align: justify;\">(vi) pentanol.<\/p>\n<p style=\"text-align: justify;\">26. If the density of some lake water is <img decoding=\"async\" style=\"height: 24px; width: 69px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch02\/image272.png\" \/>and contains 92 g of <img decoding=\"async\" style=\"height: 22px; width: 31px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch02\/image273.png\" \/>ions per kg of water, calculate the molality of <img decoding=\"async\" style=\"height: 22px; width: 31px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch02\/image273.png\" \/>ions in the lake.<\/p>\n<p style=\"text-align: justify;\">27. If the solubility product of CuS is<img decoding=\"async\" style=\"height: 22px; width: 54px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch02\/image276.png\" \/>, calculate the maximum molarity of CuS in aqueous solution.<\/p>\n<p style=\"text-align: justify;\">28. Calculate the mass percentage of aspirin <img decoding=\"async\" style=\"height: 27px; width: 69px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch02\/image285.png\" \/> in acetonitrile <img decoding=\"async\" style=\"height: 27px; width: 68px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch02\/image286.png\" \/>when 6.5 g of <img decoding=\"async\" style=\"height: 24px; width: 54px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch02\/image287.png\" \/> is dissolved in 450 g of <img decoding=\"async\" style=\"height: 24px; width: 54px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch02\/image265.png\" \/><\/p>\n<p style=\"text-align: justify;\">29. Nalorphene <img decoding=\"async\" style=\"height: 24px; width: 74px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch02\/image289.png\" \/>, similar to morphine, is used to combat withdrawal symptoms in narcotic users. Dose of nalorphene generally given is 1.5 mg. Calculate the mass of <img decoding=\"async\" style=\"height: 22px; width: 60px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch02\/image290.png\" \/>m aqueous solution required for the above dose.<\/p>\n<p style=\"text-align: justify;\">30. Calculate the amount of benzoic acid <img decoding=\"async\" style=\"height: 27px; width: 96px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch02\/image295.png\" \/>required for preparing 250 mL of 0.15 M solution in methanol.<\/p>\n<p style=\"text-align: justify;\">31. The depression in freezing point of water observed for the same amount of acetic acid, trichloroacetic acid and trifluoroacetic acid increases in the order given above. Explain briefly.<\/p>\n<p style=\"text-align: justify;\">32. Calculate the depression in the freezing point of water when 10 g of <img decoding=\"async\" style=\"height: 24px; width: 144px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch02\/image304.png\" \/>is added to 250 g of water. <img decoding=\"async\" style=\"height: 25px; width: 232px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch02\/image305.png\" \/>.<\/p>\n<p style=\"text-align: justify;\">33. 19.5 g of <img decoding=\"async\" style=\"height: 24px; width: 88px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch02\/image320.png\" \/>is dissolved in 500 g of water. The depression in the freezing point of water observed is <img decoding=\"async\" style=\"height: 18px; width: 40px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch02\/image321.png\" \/>. Calculate the van&#8217;t Hoff factor and dissociation constant of fluoroacetic acid.<\/p>\n<p style=\"text-align: justify;\">34. Vapour pressure of water at 293 Kis 17.535 mm Hg. Calculate the vapour pressure of water at 293 K When\u00a025 g of glucose is dissolved in 450 g of water.<\/p>\n<p style=\"text-align: justify;\">35. Henry&#8217;s law constant for the molality of methane in benzene at 298 K is <img decoding=\"async\" style=\"height: 22px; width: 118px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch02\/image349.png\" \/>. Calculate the solubility of methane in benzene at 298 K under 760 mm Hg.<\/p>\n<p style=\"text-align: justify;\">36. 100 g of liquid A (molar mass 140 g<img decoding=\"async\" style=\"height: 22px; width: 40px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch02\/image298.png\" \/>) was dissolved in 1000 g of liquid B (molar mass 180 g <img decoding=\"async\" style=\"height: 22px; width: 40px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch02\/image298.png\" \/>). The vapour pressure of pure liquid B was found to be 500 torr. Calculate the vapour pressure of pure liquid A and its vapour pressure in the solution if the total vapour pressure of the solution is 475 Torr.<\/p>\n<p style=\"text-align: justify;\">37. Vapor pressure of pure acetone and chloroform at 328 K are 741.8 mm Hg and 632.8 mm Hg respectively. Assuming that they form ideal solution over the entire range of composition, plot <em>p <\/em>total&#8217; <em>p <\/em>chloroform&#8217; and <em>p <\/em>acetone as a function of <em>x <\/em>acetone. The experimental data observed for different compositions of mixture is.<\/p>\n<p style=\"text-align: justify;\"><img decoding=\"async\" id=\"Picture 2\" style=\"height: 127px; width: 613px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch02\/image365.png\" \/><\/p>\n<p style=\"text-align: justify;\">38. Benzene and toluene form ideal solution over the entire range of composition. The vapour pressure of pure benzene and toluene at 300 K are 50.71 mm Hg and 32.06 mm Hg respectively. Calculate the mole fraction of benzene in vapour phase if 80 g of benzene is mixed with 100 g of toluene.<\/p>\n<p style=\"text-align: justify;\">39. The air is a mixture of a number of gases. The major components are oxygen and nitrogen with approximate proportion of 20% is to 79% by volume at 298 K. The water is in equilibrium with air at a pressure of 10 atm. At 298 K if the Henry&#8217;s law constants for oxygen and nitrogen are <img decoding=\"async\" style=\"height: 22px; width: 94px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch02\/image384.png\" \/>and <img decoding=\"async\" style=\"height: 22px; width: 93px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch02\/image385.png\" \/>respectively, calculate the composition of these gases in water.<\/p>\n<p style=\"text-align: justify;\">40. Determine the amount of <img decoding=\"async\" style=\"height: 24px; width: 43px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch02\/image399.png\" \/> (<em>i<\/em> = 2.47) dissolved in 2.5 litre of water such that its osmotic pressure is 0.75 atm at <img decoding=\"async\" style=\"height: 18px; width: 38px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch02\/image400.png\" \/>.<\/p>\n<p style=\"text-align: justify;\">41. Determine the osmotic pressure of a solution prepared by dissolving 25 mg of <img decoding=\"async\" style=\"height: 24px; width: 48px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch02\/image405.png\" \/>in 2 liter of water at <img decoding=\"async\" style=\"height: 18px; width: 38px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch02\/image406.png\" \/>, assuming that it is completely dissociated.<\/p>\n<h2 style=\"text-align: left;\"><span class=\"ez-toc-section\" id=\"NCERT_Solutions_class_12_Chemistry\"><\/span>NCERT Solutions class 12 Chemistry<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>NCERT Solutions Class 12 Chemistry PDF (Download) Free from myCBSEguide app and myCBSEguide website. Ncert solution class 12 Chemistry includes text book solutions from both part 1 and part 2. NCERT Solutions for CBSE Class 12 Chemistry have total 16 chapters. 12 Chemistry NCERT Solutions in PDF for free Download on our website. Ncert Chemistry class 12 solutions PDF and Chemistry ncert class 12 PDF solutions with latest modifications and as per the latest CBSE syllabus are only available in myCBSEguide<\/p>\n<p>To download\u00a0NCERT Solutions for class 12\u00a0Chemistry, Physics, Biology, 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","protected":false},"excerpt":{"rendered":"<p>NCERT Solutions class 12 Chemistry Solutions Part 2 solutions are available in PDF format for free download. These ncert book chapter wise questions and answers are very helpful for CBSE board exam. CBSE recommends NCERT books and most of the questions in CBSE exam are asked from NCERT text books. Class 12 Chemistry chapter wise &#8230; <a title=\"NCERT Solutions class 12 Chemistry Solutions Part 2\" class=\"read-more\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-class-12-chemistry-solutions-part-2\/\" aria-label=\"More on NCERT Solutions class 12 Chemistry Solutions Part 2\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":-1,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1434,281],"tags":[283,320,1342,216],"class_list":["post-4351","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-chemistry-cbse-class-12","category-ncert-solutions","tag-cbse-study-material","tag-chemistry","tag-class-12","tag-ncert-solutions"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>NCERT Solutions class 12 Chemistry Solutions Part 2<\/title>\n<meta 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