{"id":4361,"date":"2016-05-14T11:49:00","date_gmt":"2016-05-14T06:19:00","guid":{"rendered":"http:\/\/mycbseguide.com\/blog\/ncert-solutions-class-12-chemistry-the-d-and-f-block-elements-part-1\/"},"modified":"2018-10-22T12:58:17","modified_gmt":"2018-10-22T07:28:17","slug":"ncert-solutions-class-12-chemistry-the-d-and-f-block-elements","status":"publish","type":"post","link":"https:\/\/mycbseguide.com\/blog\/ncert-solutions-class-12-chemistry-the-d-and-f-block-elements\/","title":{"rendered":"NCERT Solutions class 12 Chemistry The d and f 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-d-and-f-block-elements\/#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-d-and-f-block-elements\/#CHAPTER_EIGHT_THE_D-AND_F-BLOCKS_ELEMENTS\" >CHAPTER EIGHT\u00a0THE D-AND F-BLOCKS 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-d-and-f-block-elements\/#NCERT_Solutions_class_12_Chemistry_The_d_and_f_block_elements_part_1\" >NCERT Solutions class 12 Chemistry The d and f 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-d-and-f-block-elements\/#NCERT_Solutions_class_12_Chemistry\" >NCERT Solutions class 12 Chemistry<\/a><\/li><\/ul><\/nav><\/div>\n<p>NCERT Solutions class 12 Chemistry The d and f block elements 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 The d and f 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 d and f block elements part 1\" width=\"133\" height=\"171\" \/><\/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_EIGHT_THE_D-AND_F-BLOCKS_ELEMENTS\"><\/span><strong>CHAPTER EIGHT\u00a0<\/strong><strong>THE D-AND F-BLOCKS ELEMENTS<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li>8.1 Position in the Periodic Tabble<\/li>\n<li>8.2 Electronic Configurations of the d-Block Elements<\/li>\n<li>8.3 General Properties of the Transition Elements (d-Block)<\/li>\n<li>8.4 Some important Compounds of Transition Elements<\/li>\n<li>8.5 The Lanthanoids<\/li>\n<li>8.6 The Actinoids<\/li>\n<li>8.7 Some Applications of d-and f-Block Elements<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"NCERT_Solutions_class_12_Chemistry_The_d_and_f_block_elements_part_1\"><\/span>NCERT Solutions class 12 Chemistry The d and f block elements part 1<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p style=\"text-align: justify;\">Part-1<\/p>\n<p style=\"text-align: justify;\">1. Write down the electronic configuration of:<\/p>\n<p style=\"text-align: justify;\"><strong>(i) <img decoding=\"async\" style=\"height: 22px; width: 32px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch08\/image023.png\" \/>+<\/strong><\/p>\n<p style=\"text-align: justify;\"><strong> (ii) <img decoding=\"async\" style=\"height: 20px; width: 38px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch08\/image035.png\" \/> <\/strong><\/p>\n<p style=\"text-align: justify;\"><strong>(iii) <img decoding=\"async\" style=\"height: 22px; width: 31px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch08\/image032.png\" \/><\/strong><\/p>\n<p style=\"text-align: justify;\"><strong>(iv) <img decoding=\"async\" style=\"height: 22px; width: 33px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch08\/image036.png\" \/> <\/strong><\/p>\n<p style=\"text-align: justify;\"><strong>(v) <img decoding=\"async\" style=\"height: 22px; width: 35px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch08\/image037.png\" \/><\/strong><\/p>\n<p style=\"text-align: justify;\"><strong>(vi) <img decoding=\"async\" style=\"height: 22px; width: 35px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch08\/image038.png\" \/><\/strong><\/p>\n<p style=\"text-align: justify;\"><strong>(vii) <img decoding=\"async\" style=\"height: 20px; width: 38px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch08\/image039.png\" \/><\/strong><\/p>\n<p style=\"text-align: justify;\"><strong>(viii) <img decoding=\"async\" style=\"height: 20px; width: 35px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch08\/image040.png\" \/><\/strong><\/p>\n<p style=\"text-align: justify;\">2. Why are <img decoding=\"async\" style=\"height: 20px; width: 38px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch08\/image039.png\" \/>compounds more stable than <img decoding=\"async\" style=\"height: 22px; width: 32px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch08\/image019.png\" \/>towards oxidation to their +3 state?<\/p>\n<p style=\"text-align: justify;\">3. Explain briefly how +2 state becomes more and more stable in the first half of the first row transition elements with increasing atomic number?<\/p>\n<p style=\"text-align: justify;\">4. To what extent do the electronic configurations decide the stability of oxidation states in the first series of the transition elements? Illustrate your answer with examples.<\/p>\n<p style=\"text-align: justify;\">5. What may be the stable oxidation state of the transition element with the following <em>d<\/em> electron configurations in the ground state of their atoms: <img decoding=\"async\" style=\"height: 24px; width: 80px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch08\/image070.png\" \/>and <img decoding=\"async\" style=\"height: 22px; width: 25px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch08\/image071.png\" \/>?<\/p>\n<p style=\"text-align: justify;\">6. Name the oxometal anions of the first series of the transition metals in which the metal exhibits the oxidation state equal to its group number.<\/p>\n<p style=\"text-align: justify;\">7. What is lanthanoid contraction? What are the consequences of lanthanoid contraction?<\/p>\n<p style=\"text-align: justify;\">8. What are the characteristics of the transition elements and why are they called transition elements? Which of the <em>d<\/em>-block elements may not be regarded as the transition elements?<\/p>\n<p style=\"text-align: justify;\">9. In what way is the electronic configuration of the transition elements different from that of the non-transition elements?<\/p>\n<p style=\"text-align: justify;\">10. What are the different oxidation states exhibited by the lanthanoids?<\/p>\n<p style=\"text-align: justify;\">11. Explain giving reasons:<\/p>\n<p style=\"text-align: justify;\">(i) Transition metals and many of their compounds show paramagnetic behaviour.<\/p>\n<p style=\"text-align: justify;\">(ii) The enthalpies of atomisation of the transition metals are high.<\/p>\n<p style=\"text-align: justify;\">(iii) The transition metals generally form coloured compounds.<\/p>\n<p style=\"text-align: justify;\">(iv) Transition metals and their many compounds act as good catalyst.<\/p>\n<p style=\"text-align: justify;\">12. What are interstitial compounds? Why are such compounds well known for transition metals?<\/p>\n<p style=\"text-align: justify;\">13. How is the variability in oxidation states of transition metals different from that of the non-transition metals? Illustrate with examples.<\/p>\n<p style=\"text-align: justify;\">14. Describe the preparation of potassium dichromate from iron chromite ore. What is the effect of increasing pH on a solution of potassium dichromate?<\/p>\n<p style=\"text-align: justify;\">15. Describe the oxidising action of potassium dichromate and write the ionic equations for its reaction with:<\/p>\n<p style=\"text-align: justify;\">(i) iodide<\/p>\n<p style=\"text-align: justify;\">(ii) iron(II) solution and<\/p>\n<p style=\"text-align: justify;\">(iii) <img decoding=\"async\" style=\"height: 24px; width: 31px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch08\/image087.png\" \/><\/p>\n<p style=\"text-align: justify;\">16. Describe the preparation of potassium permanganate. How does the acidified permanganate solution react with (i) iron (II) ions (ii) <img decoding=\"async\" style=\"height: 24px; width: 31px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch08\/image093.png\" \/>and (iii) oxalic acid? Write the ionic equations for the reactions.<\/p>\n<p style=\"text-align: justify;\">17. For <img decoding=\"async\" style=\"height: 22px; width: 58px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch08\/image108.png\" \/>and <img decoding=\"async\" style=\"height: 22px; width: 68px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch08\/image109.png\" \/>systems, the <img decoding=\"async\" style=\"height: 22px; width: 24px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch08\/image110.png\" \/>values for some metals are as follows:<\/p>\n<p style=\"text-align: justify;\"><img decoding=\"async\" style=\"height: 22px; width: 107px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch08\/image111.png\" \/><\/p>\n<p style=\"text-align: justify;\"><img decoding=\"async\" style=\"height: 22px; width: 119px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch08\/image112.png\" \/><\/p>\n<p style=\"text-align: justify;\"><img decoding=\"async\" style=\"height: 22px; width: 119px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch08\/image113.png\" \/><\/p>\n<p style=\"text-align: justify;\"><img decoding=\"async\" style=\"height: 22px; width: 131px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch08\/image114.png\" \/><\/p>\n<p style=\"text-align: justify;\"><img decoding=\"async\" style=\"height: 22px; width: 107px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch08\/image115.png\" \/><\/p>\n<p style=\"text-align: justify;\"><img decoding=\"async\" style=\"height: 22px; width: 118px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch08\/image116.png\" \/><\/p>\n<p style=\"text-align: justify;\">Use this data to comment upon:<\/p>\n<p style=\"text-align: justify;\">(i) The stability of <img decoding=\"async\" style=\"height: 22px; width: 32px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch08\/image024.png\" \/>in acid solution as compared to that of <img decoding=\"async\" style=\"height: 22px; width: 32px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch08\/image023.png\" \/>or <img decoding=\"async\" style=\"height: 20px; width: 38px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch08\/image057.png\" \/>and<\/p>\n<p style=\"text-align: justify;\">(ii) The ease with which iron can be oxidised as compared to a similar process for either chromium or manganese metal.<\/p>\n<p style=\"text-align: justify;\">18. Predict which of the following will be coloured in aqueous solution? <img decoding=\"async\" style=\"height: 24px; width: 200px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch08\/image125.png\" \/>and <img decoding=\"async\" style=\"height: 22px; width: 35px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/chemistry\/ch08\/image037.png\" \/>. Give reasons for each.<\/p>\n<p style=\"text-align: justify;\">19. Compare the stability of +2 oxidation state for the elements of the first transition series.<\/p>\n<p style=\"text-align: justify;\">20. Compare the chemistry of actinides with that of the lanthanide with special reference\u00a0to:<\/p>\n<p style=\"text-align: justify;\">(i) electronic configuration (iii) oxidation state<\/p>\n<p style=\"text-align: justify;\">(ii) atomic and ionic sizes and (iv) chemical reactivity<strong>. <\/strong><\/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<\/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 The d and f block elements 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 &#8230; <a title=\"NCERT Solutions class 12 Chemistry The d and f block elements part 1\" class=\"read-more\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-class-12-chemistry-the-d-and-f-block-elements\/\" aria-label=\"More on NCERT Solutions class 12 Chemistry The d and f 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-4361","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 d and f block elements<\/title>\n<meta name=\"description\" content=\"NCERT Solutions class 12 Chemistry The d and f block elements part 1 in PDF format for free download. 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