{"id":1493,"date":"2024-02-18T14:56:25","date_gmt":"2024-02-18T09:26:25","guid":{"rendered":"https:\/\/lotusarise.com\/qna\/?p=1493"},"modified":"2024-04-03T07:06:09","modified_gmt":"2024-04-03T01:36:09","slug":"q-which-of-the-following-is-are-the-example-examples-of-chemical-change","status":"publish","type":"post","link":"https:\/\/lotusarise.com\/qna\/upsc\/q-which-of-the-following-is-are-the-example-examples-of-chemical-change","title":{"rendered":"Q.\u00a0Which of the following is\/are the example\/examples of chemical change?"},"content":{"rendered":"\n<ol class=\"wp-block-list\">\n<li>Crystallization of sodium chloride<\/li>\n\n\n\n<li>Melting of ice<\/li>\n\n\n\n<li>Souring of milk<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Select the correct answer using the code given below.<\/p>\n\n\n\n<ul class=\"mcq wp-block-list\">\n<li>1 and 2 only<\/li>\n\n\n\n<li>3 only<\/li>\n\n\n\n<li>1, 2 and 3<\/li>\n\n\n\n<li>None<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>Answer:<\/strong>&nbsp;<strong>(b) 3 only<\/strong><\/p>\n<\/blockquote>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"chemical-change\"><strong>Chemical Change<\/strong><\/h5>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>When one chemical substance is transformed into one or more different substances, it is called a chemical change<\/strong>. The most common example is when iron transforms into rust.<\/li>\n\n\n\n<li><strong>Crystallization of sodium chloride<\/strong>\n<ul class=\"wp-block-list\">\n<li>When the solubility limit of NaCl exceeds, the crystallization of NaCl takes place.<\/li>\n\n\n\n<li>It is a&nbsp;<strong>physical change since sodium chloride does not transform into some other chemical element after crystallization<\/strong>.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Melting of ice<\/strong>\n<ul class=\"wp-block-list\">\n<li>Ice is the solid form that liquid water takes when it is cooled below 0 degrees celsius.<\/li>\n\n\n\n<li>When the temperature rises, solid ice changes into liquid water.<\/li>\n\n\n\n<li>It is&nbsp;<strong>not a chemical change since the composition of water molecules stays the same before and after melting.<\/strong><\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Souring of milk<\/strong>\n<ul class=\"wp-block-list\">\n<li>Lactic acid bacteria ferment lactose at room temperature and turn it into lactic acid.<\/li>\n\n\n\n<li>As a re\u00adsult, the acid\u00adi\u00adty of the milk in\u00adcreas\u00ades, which in its turn caus\u00ades the pro\u00adtein to fold and liq\u00aduid to sep\u00ada\u00adrate into whey and a vis\u00adcous mass.<\/li>\n\n\n\n<li><strong>The soured milk has new elements and it cannot be reversed. Hence, it is a chemical change<\/strong>.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/lotusarise.com\/wp-content\/uploads\/2024\/01\/Chemical-Change-1024x683.jpeg\" alt=\"Chemical Change\" class=\"wp-image-47894\" title=\"\"><\/figure>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Select the correct answer using the code given below. Answer:&nbsp;(b) 3 only Chemical Change<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"categories":[1,3],"tags":[44],"years":[59],"class_list":["post-1493","post","type-post","status-publish","format-standard","hentry","category-upsc","category-prelims","tag-science-and-tech","years-59"],"acf":[],"taxonomy_info":{"category":[{"value":1,"label":"UPSC"},{"value":3,"label":"Prelims"}],"post_tag":[{"value":44,"label":"Science and Tech"}],"years":[{"value":59,"label":"2014"}]},"featured_image_src_large":false,"author_info":{"display_name":"LotusArise","author_link":"https:\/\/lotusarise.com\/qna\/author\/team-lotusarise"},"comment_info":0,"category_info":[{"term_id":1,"name":"UPSC","slug":"upsc","term_group":0,"term_taxonomy_id":1,"taxonomy":"category","description":"","parent":0,"count":1269,"filter":"raw","cat_ID":1,"category_count":1269,"category_description":"","cat_name":"UPSC","category_nicename":"upsc","category_parent":0},{"term_id":3,"name":"Prelims","slug":"prelims","term_group":0,"term_taxonomy_id":3,"taxonomy":"category","description":"","parent":1,"count":1251,"filter":"raw","cat_ID":3,"category_count":1251,"category_description":"","cat_name":"Prelims","category_nicename":"prelims","category_parent":1}],"tag_info":[{"term_id":44,"name":"Science and Tech","slug":"science-and-tech","term_group":0,"term_taxonomy_id":44,"taxonomy":"post_tag","description":"","parent":0,"count":167,"filter":"raw"}],"_links":{"self":[{"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/posts\/1493","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/comments?post=1493"}],"version-history":[{"count":2,"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/posts\/1493\/revisions"}],"predecessor-version":[{"id":1643,"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/posts\/1493\/revisions\/1643"}],"wp:attachment":[{"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/media?parent=1493"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/categories?post=1493"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/tags?post=1493"},{"taxonomy":"years","embeddable":true,"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/years?post=1493"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}