{"id":4358,"date":"2016-05-13T11:49:00","date_gmt":"2016-05-13T06:19:00","guid":{"rendered":"http:\/\/mycbseguide.com\/blog\/ncert-solutions-class-12-chemistry-the-p-block-elements-part-1\/"},"modified":"2018-10-22T12:34:28","modified_gmt":"2018-10-22T07:04:28","slug":"ncert-solutions-class-12-chemistry-the-p-block-elements-part-1","status":"publish","type":"post","link":"https:\/\/mycbseguide.com\/blog\/ncert-solutions-class-12-chemistry-the-p-block-elements-part-1\/","title":{"rendered":"NCERT Solutions class 12 Chemistry The p block elements 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-the-p-block-elements-part-1\/#NCERT_Class_12_Chemistry_Chapter-wise_Solutions\" >NCERT Class 12 Chemistry Chapter-wise Solutions<\/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\/ncert-solutions-class-12-chemistry-the-p-block-elements-part-1\/#CHAPTER_SEVEN_THE_P-BLOCK_ELEMENTS\" >CHAPTER SEVEN\u00a0THE P-BLOCK ELEMENTS<\/a><\/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-the-p-block-elements-part-1\/#NCERT_Solutions_class_12_Chemistry_The_p_block_elements_part_1\" >NCERT Solutions class 12 Chemistry The p block elements 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-the-p-block-elements-part-1\/#NCERT_Solutions_class_12_Chemistry\" >NCERT Solutions class 12 Chemistry<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-class-12-chemistry-the-p-block-elements-part-1\/#CBSE_app_for_Class_12\" >CBSE app for Class 12<\/a><\/li><\/ul><\/nav><\/div>\n<p>NCERT Solutions class 12 Chemistry The p block elements part 1 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\u00a0The p block elements part 1\u00a0<\/a>as 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 The p block elements part 1\" width=\"139\" height=\"179\" \/><\/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<h2><span class=\"ez-toc-section\" id=\"CHAPTER_SEVEN_THE_P-BLOCK_ELEMENTS\"><\/span><strong>CHAPTER SEVEN\u00a0THE P-BLOCK ELEMENTS<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li>7.1 Group 15 Elements<\/li>\n<li>7.2 Dinitrogen<\/li>\n<li>7.3 Ammonia<\/li>\n<li>7.4 Oxides of Nitrogen<\/li>\n<li>7.5 Nitric Acid<\/li>\n<li>7.6 Phosphorus &#8211; Allotropic Forms<\/li>\n<li>7.7 Phosphine<\/li>\n<li>7.8 Phosphorus Halides<\/li>\n<li>7.9 Oxoacids of Phosphorus<\/li>\n<li>7.10 Group 16 Elements<\/li>\n<li>7.11 Dioxygen<\/li>\n<li>7.12 Simple Oxides<\/li>\n<li>7.13 Ozone<\/li>\n<li>7.14 Sulphur &#8211; Allotropic Forma<\/li>\n<li>7.15 Sulphur Dioxide<\/li>\n<li>7.16 Oxoacids of Sulphur<\/li>\n<li>7.17 Sulphuric Acid<\/li>\n<li>7.18 Group 17 Elements<\/li>\n<li>7.19 Chlorine<\/li>\n<li>7.20 Hydrogen Chloride<\/li>\n<li>7.21 Oxoacids of Halogens<\/li>\n<li>7.22 Interhalogen Compounds<\/li>\n<li>7.23 Group 18 Elements<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"NCERT_Solutions_class_12_Chemistry_The_p_block_elements_part_1\"><\/span>NCERT Solutions class 12 Chemistry The p block elements part 1<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p style=\"text-align: justify;\">1. Discuss the general characteristics of Group 15 elements with reference to their electronic configuration, oxidation state, atomic size, ionisation enthalpy and electronegativity.<\/p>\n<p style=\"text-align: justify;\">2. Why does the reactivity of nitrogen differ from phosphorus?<\/p>\n<p style=\"text-align: justify;\">3. Discuss the trends in chemical reactivity of group 15 elements.<\/p>\n<p style=\"text-align: justify;\">4. Why does <img decoding=\"async\" style=\"height: 24px; width: 33px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch07\/image093.png\" \/>form hydrogen bond but <img decoding=\"async\" style=\"height: 24px; width: 32px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch07\/image013.png\" \/>does not?<\/p>\n<p style=\"text-align: justify;\">5. How is nitrogen prepared in the laboratory? Write the chemical equations of the reactions involved.<\/p>\n<p style=\"text-align: justify;\">6. How is ammonia manufactured industrially?<\/p>\n<p style=\"text-align: justify;\">7. Illustrate how copper metal can give different products on reaction with <img decoding=\"async\" style=\"height: 24px; width: 44px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch07\/image097.png\" \/>.<\/p>\n<p style=\"text-align: justify;\">8. Give the resonating structures of <img decoding=\"async\" style=\"height: 24px; width: 34px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch07\/image100.png\" \/>and<img decoding=\"async\" style=\"height: 24px; width: 40px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch07\/image010.png\" \/>.<\/p>\n<p style=\"text-align: justify;\">9. The HNH angle value is higher than HPH, HAsH and HSbH angles. Why? [Hint: Can be explained on the basis of <img decoding=\"async\" style=\"height: 24px; width: 24px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch07\/image103.png\" \/>hybridisation in <img decoding=\"async\" style=\"height: 24px; width: 33px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch07\/image002.png\" \/>and only <em>s-p<\/em> bonding between hydrogen and other elements of the group].<\/p>\n<p style=\"text-align: justify;\">10. Why does <img decoding=\"async\" style=\"height: 24px; width: 59px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch07\/image107.png\" \/>exist but <img decoding=\"async\" style=\"height: 24px; width: 62px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch07\/image108.png\" \/>does not (R = alkyl group)?<\/p>\n<p style=\"text-align: justify;\">11. Explain why <img decoding=\"async\" style=\"height: 24px; width: 33px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch07\/image002.png\" \/>is basic while <img decoding=\"async\" style=\"height: 24px; width: 37px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch07\/image001.png\" \/>is only feebly basic.<\/p>\n<p style=\"text-align: justify;\">12. Nitrogen exists as diatomic molecule and phosphorus as <img decoding=\"async\" style=\"height: 24px; width: 17px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch07\/image110.png\" \/>. Why?<\/p>\n<p style=\"text-align: justify;\">13. Write main differences between the properties of white phosphorus and red phosphorus.<\/p>\n<p style=\"text-align: justify;\">14. Why does nitrogen show catenation properties less than phosphorus?<\/p>\n<p style=\"text-align: justify;\">15. Give the disproportionation reaction of <img decoding=\"async\" style=\"height: 24px; width: 49px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch07\/image112.png\" \/>.<\/p>\n<p style=\"text-align: justify;\">16. Can <img decoding=\"async\" style=\"height: 24px; width: 34px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch07\/image021.png\" \/>act as an oxidising as well as a reducing agent? Justify.<\/p>\n<p style=\"text-align: justify;\">17. Justify the placement of O, S, Se, Te and Po in the same group of the periodic table in terms of electronic configuration, oxidation state and hydride formation.<\/p>\n<p style=\"text-align: justify;\">18. Why is dioxygen a gas but sulphur a solid?<\/p>\n<p style=\"text-align: justify;\">19. Knowing the electron gain enthalpy values for <img decoding=\"async\" style=\"height: 22px; width: 56px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch07\/image127.png\" \/> and <img decoding=\"async\" style=\"height: 22px; width: 62px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch07\/image128.png\" \/>as -141 and <img decoding=\"async\" style=\"height: 24px; width: 81px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch07\/image129.png\" \/> respectively, how can you account for the formation of a large number of oxides having <img decoding=\"async\" style=\"height: 22px; width: 29px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch07\/image130.png\" \/> species and not <img decoding=\"async\" style=\"height: 22px; width: 23px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch07\/image131.png\" \/>?<\/p>\n<p style=\"text-align: justify;\">(Hint: Consider lattice energy factor in the formation of compounds).<\/p>\n<p style=\"text-align: justify;\">20. Which aerosols deplete ozone?<\/p>\n<h2><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 NCERT Solutions class 12 Chemistry Amines part 1<\/p>\n<h2><span class=\"ez-toc-section\" id=\"CBSE_app_for_Class_12\"><\/span>CBSE app for Class 12<span class=\"ez-toc-section-end\"><\/span><\/h2>\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 The p block elements part 1 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 &#8230; <a title=\"NCERT Solutions class 12 Chemistry The p block elements part 1\" class=\"read-more\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-class-12-chemistry-the-p-block-elements-part-1\/\" aria-label=\"More on NCERT Solutions class 12 Chemistry The p block elements 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-4358","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 The p block elements part 1<\/title>\n<meta name=\"description\" content=\"NCERT Solutions class 12 Chemistry The p block elements part 1 in PDF format for free download. 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