{"id":4353,"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-1\/"},"modified":"2018-10-22T11:02:22","modified_gmt":"2018-10-22T05:32:22","slug":"ncert-solutions-class-12-chemistry-solutions-part-1","status":"publish","type":"post","link":"https:\/\/mycbseguide.com\/blog\/ncert-solutions-class-12-chemistry-solutions-part-1\/","title":{"rendered":"NCERT Solutions class 12 Chemistry Solutions Part 1"},"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-1\/#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-1\/#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-1\/#NCERT_Solutions_class_12_Chemistry_Solutions_Part_1\" >NCERT Solutions class 12 Chemistry Solutions Part 1<\/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-1\/#NCERT_Solutions_class_12_Chemistry\" >NCERT Solutions class 12 Chemistry<\/a><\/li><\/ul><\/nav><\/div>\n<p>NCERT Solutions class 12 Chemistry Solutions Part 1 Class 12 Chemistry book 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 Chemistry 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\u00a0Solutions Part-1<\/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 1\" width=\"136\" height=\"174\" \/><\/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_1\"><\/span>NCERT Solutions class 12 Chemistry Solutions Part 1<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>1. Define the term solution. How many types of solutions are formed? Write briefly about each type with an example.<\/p>\n<p style=\"text-align: justify;\">2. Give an example of solid solution in which the solute is a gas.<\/p>\n<p style=\"text-align: justify;\">3. Define the following terms:<\/p>\n<p>(i) Mole fraction<\/p>\n<p>(ii) Molality<\/p>\n<p>(iii) Molarity<\/p>\n<p>(iv) Mass percentage.<\/p>\n<p style=\"text-align: justify;\">4. Concentrated nitric acid used in laboratory work is 68% nitric acid by mass in aqueous solution. What should be the molarity of such a sample of the acid if the density of the solution is<img decoding=\"async\" style=\"height: 24px; width: 81px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch02\/image108.png\" \/>?<\/p>\n<p>Molarity of solution = <img decoding=\"async\" style=\"height: 42px; width: 92px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch02\/image109.png\" \/> = 16.23 M<\/p>\n<p style=\"text-align: justify;\">5. A solution of glucose in water is labelled as 10% w\/w, what would be the molality and mole fraction of each component in the solution? If the density of solution is <img decoding=\"async\" style=\"height: 24px; width: 61px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch02\/image115.png\" \/> , then what shall be the molarity of the solution?<\/p>\n<p style=\"text-align: justify;\">6. How many mL of 0.1 M HCl are required to react completely with 1 g mixture of <img decoding=\"async\" style=\"height: 24px; width: 58px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch02\/image126.png\" \/> and <img decoding=\"async\" style=\"height: 24px; width: 63px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch02\/image127.png\" \/>containing equimolar amounts of both?<\/p>\n<p style=\"text-align: justify;\">7. A solution is obtained by mixing 300g of 25% solution and 400 g of 40% solution by mass. Calculate the mass percentage of the resulting solution.<\/p>\n<p style=\"text-align: justify;\">8. An antifreeze solution is prepared from 222.6 g of ethylene glycol (<img decoding=\"async\" style=\"height: 24px; width: 56px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch02\/image143.png\" \/>) and 200 g of water. Calculate the molality of the solution. If the density of the solution is<img decoding=\"async\" style=\"height: 24px; width: 81px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch02\/image144.png\" \/>, then what shall be the molarity of the solution?<\/p>\n<p style=\"text-align: justify;\">9. A sample of drinking water was found to be severely contaminated with chloroform (<img decoding=\"async\" style=\"height: 24px; width: 47px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch02\/image152.png\" \/>) supposed to be a carcinogen. The level of contamination was 15 ppm (by mass):<\/p>\n<p>(i) express this in percent by mass<\/p>\n<p>(ii) determine the molality of chloroform in the water sample.<\/p>\n<p style=\"text-align: justify;\">10. What role does the molecular interaction play in a solution of alcohol and water?<\/p>\n<p style=\"text-align: justify;\">11. Why do gases always tend to be less soluble in liquids as the temperature is raised?<\/p>\n<p style=\"text-align: justify;\">12. State Henry&#8217;s law and mention some important applications?<\/p>\n<p style=\"text-align: justify;\">13. The partial pressure of ethane over a solution containing <img decoding=\"async\" style=\"height: 24px; width: 80px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch02\/image162.png\" \/>of ethane is 1 bar. If the solution contains <img decoding=\"async\" style=\"height: 24px; width: 80px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch02\/image163.png\" \/> of ethane, then what shall be the partial pressure of the gas?<\/p>\n<p style=\"text-align: justify;\">4. What is meant by positive and negative deviations from Raoult&#8217;s law and how is the sign of <img decoding=\"async\" style=\"height: 22px; width: 51px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch02\/image171.png\" \/> related to positive and negative deviations from Raoult&#8217;s law?<\/p>\n<p style=\"text-align: justify;\">15. An aqueous solution of 2% non-volatile solute exerts a pressure of 1.004 bar at the normal boiling point of the solvent. What is the molar mass of the solute?<\/p>\n<p style=\"text-align: justify;\">16. Heptane and octane form an ideal solution. At 373 K, the vapour pressures of the two liquid components are 105.2 kPa and 46.8 kPa respectively. What will be the vapour pressure of a mixture of 26.0 g of heptane and 35 g of octane?<\/p>\n<p style=\"text-align: justify;\">17. The vapour pressure of water is 12.3 kPa at 300 K. Calculate vapour pressure of 1 molal solution of a non-volatile solute in it.<\/p>\n<p style=\"text-align: justify;\">18. Calculate the mass of a non-volatile solute (molar mass 40 g<img decoding=\"async\" style=\"height: 22px; width: 40px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch02\/image203.png\" \/>) which should be dissolved in 114 g octane to reduce its vapour pressure to 80%.<\/p>\n<p>19. A solution\u00a0containing 30 g of non-volatile solute exactly in 90 g of water has a vapour pressure of 2.8 kPa at 298 K. Further, 18 g of water is then added to the solution and the new vapour pressure becomes 2.9 kPa at 298 K. Calculate:<\/p>\n<p>i. molar mass of the solute<\/p>\n<p>ii. vapour pressure of water at 298 K.<\/p>\n<p style=\"text-align: justify;\">20. A 5% solution (by mass) of cane sugar in water has freezing point of 271 K. Calculate the freezing point of 5% glucose in water if freezing point of pure water is 273.15 K.<\/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 1 Class 12 Chemistry book 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 &#8230; <a title=\"NCERT Solutions class 12 Chemistry Solutions Part 1\" class=\"read-more\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-class-12-chemistry-solutions-part-1\/\" aria-label=\"More on NCERT Solutions class 12 Chemistry Solutions Part 1\">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-4353","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 1<\/title>\n<meta name=\"description\" content=\"NCERT Solutions class 12 Chemistry Solutions Part 1 in PDF format for free download. 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