{"id":88932,"date":"2025-06-01T07:25:05","date_gmt":"2025-06-01T07:25:05","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=88932"},"modified":"2025-06-01T07:25:05","modified_gmt":"2025-06-01T07:25:05","slug":"match-list-i-with-list-ii-and-select-the-correct-answer-using-the-code-99","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/match-list-i-with-list-ii-and-select-the-correct-answer-using-the-code-99\/","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 \/>(Chemical process)<\/th>\n<th>List II<br \/>(Reaction)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>A. Electrolysis of water<\/td>\n<td>1. Double displacement reaction<\/td>\n<\/tr>\n<tr>\n<td>B. Burning of coal<\/td>\n<td>2. Combination reaction<\/td>\n<\/tr>\n<tr>\n<td>C. Iron nail immersed in copper sulphate solution<\/td>\n<td>3. Decomposition reaction<\/td>\n<\/tr>\n<tr>\n<td>D. Addition of barium chloride solution to aluminium sulphate solution<\/td>\n<td>4. Displacement reaction<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Code :<\/p>\n<table>\n<thead>\n<tr>\n<th><\/th>\n<th>A<\/th>\n<th>B<\/th>\n<th>C<\/th>\n<th>D<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>(a)<\/td>\n<td>3<\/td>\n<td>4<\/td>\n<td>2<\/td>\n<td>1<\/td>\n<\/tr>\n<tr>\n<td>(b)<\/td>\n<td>4<\/td>\n<td>2<\/td>\n<td>1<\/td>\n<td>3<\/td>\n<\/tr>\n<tr>\n<td>(c)<\/td>\n<td>3<\/td>\n<td>2<\/td>\n<td>4<\/td>\n<td>1<\/td>\n<\/tr>\n<tr>\n<td>(d)<\/td>\n<td>4<\/td>\n<td>1<\/td>\n<td>2<\/td>\n<td>3<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>[amp_mcq option1=&#8221;(a) 3 4 2 1&#8243; option2=&#8221;(b) 4 2 1 3&#8243; option3=&#8221;(c) 3 2 4 1&#8243; option4=&#8221;(d) 4 1 2 3&#8243; correct=&#8221;option3&#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 NDA-2 &#8211; 2023<\/div>\n<\/div>\n<div class=\"pyq-exam-psc-buttons\"><a href=\"\/pyq\/pyq-upsc-nda-2-2023.pdf\" target=\"_blank\" class=\"psc-pdf-button\" rel=\"noopener\">Download PDF<\/a><a href=\"\/pyq-upsc-nda-2-2023\" target=\"_blank\" class=\"psc-attempt-button\" rel=\"noopener\">Attempt Online<\/a><\/div>\n<\/div>\n<section id=\"pyq-correct-answer\">\nThe correct matching of chemical processes with their reaction types is A-3, B-2, C-4, D-1.<br \/>\n<\/section>\n<section id=\"pyq-key-points\">\nA. Electrolysis of water involves breaking down water (a single compound) into hydrogen and oxygen (simpler substances) using electricity. This is a decomposition reaction. (H\u2082O \u2192 H\u2082 + O\u2082)<br \/>\nB. Burning of coal involves the reaction of carbon (and other components) with oxygen, usually forming carbon dioxide. This is a combination reaction (C + O\u2082 \u2192 CO\u2082) and also combustion.<br \/>\nC. Iron nail immersed in copper sulphate solution involves iron displacing copper from copper sulphate because iron is more reactive than copper. This is a displacement reaction. (Fe + CuSO\u2084 \u2192 FeSO\u2084 + Cu)<br \/>\nD. Addition of barium chloride solution to aluminium sulphate solution involves the exchange of ions between the two reactants, forming new compounds, one of which is insoluble (barium sulphate precipitate). This is a double displacement reaction. (3BaCl\u2082 + Al\u2082(SO\u2084)\u2083 \u2192 3BaSO\u2084\u2193 + 2AlCl\u2083)<br \/>\n<\/section>\n<section id=\"pyq-additional-information\">\nMatching these gives: A-3, B-2, C-4, D-1, which corresponds to option (c).<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(Chemical process) List II(Reaction) A. Electrolysis of water 1. Double displacement reaction B. Burning of coal 2. Combination reaction C. Iron nail immersed in copper sulphate solution 3. Decomposition reaction D. Addition of barium chloride &#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-99\/#more-88932\">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":[1094],"tags":[1105,1096,1155],"class_list":["post-88932","post","type-post","status-publish","format-standard","hentry","category-upsc-nda-2","tag-1105","tag-chemistry","tag-physical-and-chemical-changes-solution","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=\"The correct matching of chemical processes with their reaction types is A-3, B-2, C-4, D-1. A. Electrolysis of water involves breaking down water (a single compound) into hydrogen and oxygen (simpler substances) using electricity. This is a decomposition reaction. (H\u2082O \u2192 H\u2082 + O\u2082) B. Burning of coal involves the reaction of carbon (and other components) with oxygen, usually forming carbon dioxide. This is a combination reaction (C + O\u2082 \u2192 CO\u2082) and also combustion. C. Iron nail immersed in copper sulphate solution involves iron displacing copper from copper sulphate because iron is more reactive than copper. This is a displacement reaction. (Fe + CuSO\u2084 \u2192 FeSO\u2084 + Cu) D. Addition of barium chloride solution to aluminium sulphate solution involves the exchange of ions between the two reactants, forming new compounds, one of which is insoluble (barium sulphate precipitate). This is a double displacement reaction. (3BaCl\u2082 + Al\u2082(SO\u2084)\u2083 \u2192 3BaSO\u2084\u2193 + 2AlCl\u2083)\" \/>\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-99\/\" \/>\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=\"The correct matching of chemical processes with their reaction types is A-3, B-2, C-4, D-1. A. Electrolysis of water involves breaking down water (a single compound) into hydrogen and oxygen (simpler substances) using electricity. This is a decomposition reaction. (H\u2082O \u2192 H\u2082 + O\u2082) B. Burning of coal involves the reaction of carbon (and other components) with oxygen, usually forming carbon dioxide. This is a combination reaction (C + O\u2082 \u2192 CO\u2082) and also combustion. C. Iron nail immersed in copper sulphate solution involves iron displacing copper from copper sulphate because iron is more reactive than copper. This is a displacement reaction. (Fe + CuSO\u2084 \u2192 FeSO\u2084 + Cu) D. Addition of barium chloride solution to aluminium sulphate solution involves the exchange of ions between the two reactants, forming new compounds, one of which is insoluble (barium sulphate precipitate). This is a double displacement reaction. (3BaCl\u2082 + Al\u2082(SO\u2084)\u2083 \u2192 3BaSO\u2084\u2193 + 2AlCl\u2083)\" \/>\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-99\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T07:25:05+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":"The correct matching of chemical processes with their reaction types is A-3, B-2, C-4, D-1. A. Electrolysis of water involves breaking down water (a single compound) into hydrogen and oxygen (simpler substances) using electricity. This is a decomposition reaction. (H\u2082O \u2192 H\u2082 + O\u2082) B. Burning of coal involves the reaction of carbon (and other components) with oxygen, usually forming carbon dioxide. This is a combination reaction (C + O\u2082 \u2192 CO\u2082) and also combustion. C. Iron nail immersed in copper sulphate solution involves iron displacing copper from copper sulphate because iron is more reactive than copper. This is a displacement reaction. (Fe + CuSO\u2084 \u2192 FeSO\u2084 + Cu) D. Addition of barium chloride solution to aluminium sulphate solution involves the exchange of ions between the two reactants, forming new compounds, one of which is insoluble (barium sulphate precipitate). This is a double displacement reaction. (3BaCl\u2082 + Al\u2082(SO\u2084)\u2083 \u2192 3BaSO\u2084\u2193 + 2AlCl\u2083)","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-99\/","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":"The correct matching of chemical processes with their reaction types is A-3, B-2, C-4, D-1. A. Electrolysis of water involves breaking down water (a single compound) into hydrogen and oxygen (simpler substances) using electricity. This is a decomposition reaction. (H\u2082O \u2192 H\u2082 + O\u2082) B. Burning of coal involves the reaction of carbon (and other components) with oxygen, usually forming carbon dioxide. This is a combination reaction (C + O\u2082 \u2192 CO\u2082) and also combustion. C. Iron nail immersed in copper sulphate solution involves iron displacing copper from copper sulphate because iron is more reactive than copper. This is a displacement reaction. (Fe + CuSO\u2084 \u2192 FeSO\u2084 + Cu) D. Addition of barium chloride solution to aluminium sulphate solution involves the exchange of ions between the two reactants, forming new compounds, one of which is insoluble (barium sulphate precipitate). This is a double displacement reaction. (3BaCl\u2082 + Al\u2082(SO\u2084)\u2083 \u2192 3BaSO\u2084\u2193 + 2AlCl\u2083)","og_url":"https:\/\/exam.pscnotes.com\/mcq\/match-list-i-with-list-ii-and-select-the-correct-answer-using-the-code-99\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2025-06-01T07:25:05+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-99\/","url":"https:\/\/exam.pscnotes.com\/mcq\/match-list-i-with-list-ii-and-select-the-correct-answer-using-the-code-99\/","name":"Match List I with List II and select the correct answer using the code","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2025-06-01T07:25:05+00:00","dateModified":"2025-06-01T07:25:05+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"description":"The correct matching of chemical processes with their reaction types is A-3, B-2, C-4, D-1. A. Electrolysis of water involves breaking down water (a single compound) into hydrogen and oxygen (simpler substances) using electricity. This is a decomposition reaction. (H\u2082O \u2192 H\u2082 + O\u2082) B. Burning of coal involves the reaction of carbon (and other components) with oxygen, usually forming carbon dioxide. This is a combination reaction (C + O\u2082 \u2192 CO\u2082) and also combustion. C. Iron nail immersed in copper sulphate solution involves iron displacing copper from copper sulphate because iron is more reactive than copper. This is a displacement reaction. (Fe + CuSO\u2084 \u2192 FeSO\u2084 + Cu) D. Addition of barium chloride solution to aluminium sulphate solution involves the exchange of ions between the two reactants, forming new compounds, one of which is insoluble (barium sulphate precipitate). This is a double displacement reaction. 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