{"id":84993,"date":"2025-06-01T02:59:16","date_gmt":"2025-06-01T02:59:16","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=84993"},"modified":"2025-06-01T02:59:16","modified_gmt":"2025-06-01T02:59:16","slug":"match-list-i-with-list-ii-and-select-the-correct-answer-using-the-code-8","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/match-list-i-with-list-ii-and-select-the-correct-answer-using-the-code-8\/","title":{"rendered":"Match List-I with List-II and select the correct answer using the code"},"content":{"rendered":"<p>Match List-I with List-II and select the correct answer using the code given below the Lists :<\/p>\n<table>\n<thead>\n<tr>\n<th>List-I<br \/>(Name)<\/th>\n<th>List-II<br \/>(Formula)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>A. Bleaching powder<\/td>\n<td>1. NaHCO<sub>3<\/sub><\/td>\n<\/tr>\n<tr>\n<td>B. Baking soda<\/td>\n<td>2. Na<sub>2<\/sub>CO<sub>3<\/sub> &middot; 10H<sub>2<\/sub>O<\/td>\n<\/tr>\n<tr>\n<td>C. Washing soda<\/td>\n<td>3. Ca(OH)<sub>2<\/sub><\/td>\n<\/tr>\n<tr>\n<td>D. Slaked lime<\/td>\n<td>4. CaOCl<sub>2<\/sub><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Code :<\/p>\n<p>[amp_mcq option1=&#8221;A-4, B-1, C-2, D-3&#8243; option2=&#8221;A-4, B-2, C-1, D-3&#8243; option3=&#8221;A-3, B-2, C-1, D-4&#8243; option4=&#8221;A-3, B-1, C-2, D-4&#8243; correct=&#8221;option1&#8243;]<\/p>\n<div class=\"psc-box-pyq-exam-year-detail\">\n<div class=\"pyq-exam\">\n<div class=\"psc-heading\">This question was previously asked in<\/div>\n<div class=\"psc-title line-ellipsis\">UPSC CDS-1 &#8211; 2020<\/div>\n<\/div>\n<div class=\"pyq-exam-psc-buttons\"><a href=\"\/pyq\/pyq-upsc-cds-1-2020.pdf\" target=\"_blank\" class=\"psc-pdf-button\" rel=\"noopener\">Download PDF<\/a><a href=\"\/pyq-upsc-cds-1-2020\" target=\"_blank\" class=\"psc-attempt-button\" rel=\"noopener\">Attempt Online<\/a><\/div>\n<\/div>\n<section id=\"pyq-correct-answer\">\nMatching the names with their correct chemical formulas:<br \/>\n&#8211; Bleaching powder is Calcium oxychloride, formula CaOCl\u2082. (A-4)<br \/>\n&#8211; Baking soda is Sodium bicarbonate or Sodium hydrogen carbonate, formula NaHCO\u2083. (B-1)<br \/>\n&#8211; Washing soda is Sodium carbonate decahydrate, formula Na\u2082CO\u2083 &middot; 10H\u2082O. (C-2)<br \/>\n&#8211; Slaked lime is Calcium hydroxide, formula Ca(OH)\u2082. (D-3)<br \/>\nThe correct matching is A-4, B-1, C-2, D-3.<br \/>\n<\/section>\n<section id=\"pyq-key-points\">\n&#8211; Bleaching powder: CaOCl\u2082<br \/>\n&#8211; Baking soda: NaHCO\u2083<br \/>\n&#8211; Washing soda: Na\u2082CO\u2083 &middot; 10H\u2082O<br \/>\n&#8211; Slaked lime: Ca(OH)\u2082<br \/>\n<\/section>\n<section id=\"pyq-additional-information\">\nQuicklime is Calcium oxide (CaO). When quicklime reacts with water, it forms slaked lime (Calcium hydroxide, Ca(OH)\u2082). Bleaching powder is manufactured by passing chlorine gas over dry slaked lime. Baking soda is used in baking as a leavening agent. Washing soda is used in laundry detergents and for softening water.<br \/>\n<\/section>\n","protected":false},"excerpt":{"rendered":"<p>Match List-I with List-II and select the correct answer using the code given below the Lists : List-I(Name) List-II(Formula) A. Bleaching powder 1. NaHCO3 B. Baking soda 2. Na2CO3 &middot; 10H2O C. Washing soda 3. Ca(OH)2 D. Slaked lime 4. CaOCl2 Code : [amp_mcq option1=&#8221;A-4, B-1, C-2, D-3&#8243; option2=&#8221;A-4, B-2, C-1, D-3&#8243; option3=&#8221;A-3, B-2, C-1, &#8230; <\/p>\n<p class=\"read-more-container\"><a title=\"Match List-I with List-II and select the correct answer using the code\" class=\"read-more button\" href=\"https:\/\/exam.pscnotes.com\/mcq\/match-list-i-with-list-ii-and-select-the-correct-answer-using-the-code-8\/#more-84993\">Detailed Solution<span class=\"screen-reader-text\">Match List-I with List-II and select the correct answer using the code<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1087],"tags":[1288,1202,1096],"class_list":["post-84993","post","type-post","status-publish","format-standard","hentry","category-upsc-cds-1","tag-1288","tag-acid-base-and-salt","tag-chemistry","no-featured-image-padding"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.2 (Yoast SEO v23.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Match List-I with List-II and select the correct answer using the code<\/title>\n<meta name=\"description\" content=\"Matching the names with their correct chemical formulas: - Bleaching powder is Calcium oxychloride, formula CaOCl\u2082. (A-4) - Baking soda is Sodium bicarbonate or Sodium hydrogen carbonate, formula NaHCO\u2083. (B-1) - Washing soda is Sodium carbonate decahydrate, formula Na\u2082CO\u2083 &middot; 10H\u2082O. (C-2) - Slaked lime is Calcium hydroxide, formula Ca(OH)\u2082. (D-3) The correct matching is A-4, B-1, C-2, D-3. - Bleaching powder: CaOCl\u2082 - Baking soda: NaHCO\u2083 - Washing soda: Na\u2082CO\u2083 &middot; 10H\u2082O - Slaked lime: Ca(OH)\u2082\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/exam.pscnotes.com\/mcq\/match-list-i-with-list-ii-and-select-the-correct-answer-using-the-code-8\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Match List-I with List-II and select the correct answer using the code\" \/>\n<meta property=\"og:description\" content=\"Matching the names with their correct chemical formulas: - Bleaching powder is Calcium oxychloride, formula CaOCl\u2082. (A-4) - Baking soda is Sodium bicarbonate or Sodium hydrogen carbonate, formula NaHCO\u2083. (B-1) - Washing soda is Sodium carbonate decahydrate, formula Na\u2082CO\u2083 &middot; 10H\u2082O. (C-2) - Slaked lime is Calcium hydroxide, formula Ca(OH)\u2082. (D-3) The correct matching is A-4, B-1, C-2, D-3. - Bleaching powder: CaOCl\u2082 - Baking soda: NaHCO\u2083 - Washing soda: Na\u2082CO\u2083 &middot; 10H\u2082O - Slaked lime: Ca(OH)\u2082\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/match-list-i-with-list-ii-and-select-the-correct-answer-using-the-code-8\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T02:59:16+00:00\" \/>\n<meta name=\"author\" content=\"rawan239\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"rawan239\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Match List-I with List-II and select the correct answer using the code","description":"Matching the names with their correct chemical formulas: - Bleaching powder is Calcium oxychloride, formula CaOCl\u2082. (A-4) - Baking soda is Sodium bicarbonate or Sodium hydrogen carbonate, formula NaHCO\u2083. (B-1) - Washing soda is Sodium carbonate decahydrate, formula Na\u2082CO\u2083 &middot; 10H\u2082O. (C-2) - Slaked lime is Calcium hydroxide, formula Ca(OH)\u2082. (D-3) The correct matching is A-4, B-1, C-2, D-3. - Bleaching powder: CaOCl\u2082 - Baking soda: NaHCO\u2083 - Washing soda: Na\u2082CO\u2083 &middot; 10H\u2082O - Slaked lime: Ca(OH)\u2082","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/exam.pscnotes.com\/mcq\/match-list-i-with-list-ii-and-select-the-correct-answer-using-the-code-8\/","og_locale":"en_US","og_type":"article","og_title":"Match List-I with List-II and select the correct answer using the code","og_description":"Matching the names with their correct chemical formulas: - Bleaching powder is Calcium oxychloride, formula CaOCl\u2082. (A-4) - Baking soda is Sodium bicarbonate or Sodium hydrogen carbonate, formula NaHCO\u2083. (B-1) - Washing soda is Sodium carbonate decahydrate, formula Na\u2082CO\u2083 &middot; 10H\u2082O. (C-2) - Slaked lime is Calcium hydroxide, formula Ca(OH)\u2082. (D-3) The correct matching is A-4, B-1, C-2, D-3. - Bleaching powder: CaOCl\u2082 - Baking soda: NaHCO\u2083 - Washing soda: Na\u2082CO\u2083 &middot; 10H\u2082O - Slaked lime: Ca(OH)\u2082","og_url":"https:\/\/exam.pscnotes.com\/mcq\/match-list-i-with-list-ii-and-select-the-correct-answer-using-the-code-8\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2025-06-01T02:59:16+00:00","author":"rawan239","twitter_card":"summary_large_image","twitter_misc":{"Written by":"rawan239","Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/exam.pscnotes.com\/mcq\/match-list-i-with-list-ii-and-select-the-correct-answer-using-the-code-8\/","url":"https:\/\/exam.pscnotes.com\/mcq\/match-list-i-with-list-ii-and-select-the-correct-answer-using-the-code-8\/","name":"Match List-I with List-II and select the correct answer using the code","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2025-06-01T02:59:16+00:00","dateModified":"2025-06-01T02:59:16+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"description":"Matching the names with their correct chemical formulas: - Bleaching powder is Calcium oxychloride, formula CaOCl\u2082. (A-4) - Baking soda is Sodium bicarbonate or Sodium hydrogen carbonate, formula NaHCO\u2083. (B-1) - Washing soda is Sodium carbonate decahydrate, formula Na\u2082CO\u2083 &middot; 10H\u2082O. (C-2) - Slaked lime is Calcium hydroxide, formula Ca(OH)\u2082. (D-3) The correct matching is A-4, B-1, C-2, D-3. - Bleaching powder: CaOCl\u2082 - Baking soda: NaHCO\u2083 - Washing soda: Na\u2082CO\u2083 &middot; 10H\u2082O - Slaked lime: Ca(OH)\u2082","breadcrumb":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/match-list-i-with-list-ii-and-select-the-correct-answer-using-the-code-8\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/exam.pscnotes.com\/mcq\/match-list-i-with-list-ii-and-select-the-correct-answer-using-the-code-8\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/exam.pscnotes.com\/mcq\/match-list-i-with-list-ii-and-select-the-correct-answer-using-the-code-8\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/exam.pscnotes.com\/mcq\/"},{"@type":"ListItem","position":2,"name":"UPSC CDS-1","item":"https:\/\/exam.pscnotes.com\/mcq\/category\/upsc-cds-1\/"},{"@type":"ListItem","position":3,"name":"Match List-I with List-II and select the correct answer using the code"}]},{"@type":"WebSite","@id":"https:\/\/exam.pscnotes.com\/mcq\/#website","url":"https:\/\/exam.pscnotes.com\/mcq\/","name":"MCQ and Quiz for Exams","description":"","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/exam.pscnotes.com\/mcq\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"en-US"},{"@type":"Person","@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209","name":"rawan239","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/761a7274f9cce048fa5b921221e7934820d74514df93ef195a9d22af0c1c9001?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/761a7274f9cce048fa5b921221e7934820d74514df93ef195a9d22af0c1c9001?s=96&d=mm&r=g","caption":"rawan239"},"sameAs":["https:\/\/exam.pscnotes.com"],"url":"https:\/\/exam.pscnotes.com\/mcq\/author\/rawan239\/"}]}},"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/posts\/84993","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/comments?post=84993"}],"version-history":[{"count":0,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/posts\/84993\/revisions"}],"wp:attachment":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/media?parent=84993"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/categories?post=84993"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/tags?post=84993"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}