{"id":87766,"date":"2025-06-01T06:53:47","date_gmt":"2025-06-01T06:53:47","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=87766"},"modified":"2025-06-01T06:53:47","modified_gmt":"2025-06-01T06:53:47","slug":"reaction-of-quick-lime-cao-with-water-to-produce-slaked-lime-caoh","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/reaction-of-quick-lime-cao-with-water-to-produce-slaked-lime-caoh\/","title":{"rendered":"Reaction of quick lime (CaO) with water to produce slaked lime (Ca(OH)"},"content":{"rendered":"

Reaction of quick lime (CaO) with water to produce slaked lime (Ca(OH)\u2082) is an example of<\/p>\n

[amp_mcq option1=”Displacement reaction.” option2=”Endothermic reaction.” option3=”Decomposition reaction.” option4=”Exothermic reaction.” correct=”option4″]<\/p>\n

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\n
This question was previously asked in<\/div>\n
UPSC NDA-1 – 2021<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
\nThe reaction between quick lime (calcium oxide, CaO) and water (H\u2082O) to form slaked lime (calcium hydroxide, Ca(OH)\u2082) is represented by the equation: CaO(s) + H\u2082O(l) \u2192 Ca(OH)\u2082(s). This reaction is well-known for releasing a significant amount of heat, making it a highly exothermic process.
\n<\/section>\n
\nExothermic reactions are chemical reactions that release energy, typically in the form of heat or light. Endothermic reactions absorb energy. Displacement reactions involve one element displacing another from a compound. Decomposition reactions involve a single compound breaking down into simpler substances. The reaction of quick lime with water fits the definition of an exothermic reaction due to the large heat release, also sometimes classified as a combination reaction.
\n<\/section>\n
\nThis reaction is used in the industrial production of slaked lime, which has various applications, including in mortar and plaster, water treatment, and agriculture. The heat released during the reaction is often sufficient to boil the water.
\n<\/section>\n","protected":false},"excerpt":{"rendered":"

Reaction of quick lime (CaO) with water to produce slaked lime (Ca(OH)\u2082) is an example of [amp_mcq option1=”Displacement reaction.” option2=”Endothermic reaction.” option3=”Decomposition reaction.” option4=”Exothermic reaction.” correct=”option4″] This question was previously asked in UPSC NDA-1 – 2021 Download PDFAttempt Online The reaction between quick lime (calcium oxide, CaO) and water (H\u2082O) to form slaked lime (calcium … <\/p>\n

Detailed SolutionReaction of quick lime (CaO) with water to produce slaked lime (Ca(OH)<\/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":[1093],"tags":[1110,1096,1155],"class_list":["post-87766","post","type-post","status-publish","format-standard","hentry","category-upsc-nda-1","tag-1110","tag-chemistry","tag-physical-and-chemical-changes-solution","no-featured-image-padding"],"yoast_head":"\nReaction of quick lime (CaO) with water to produce slaked lime (Ca(OH)<\/title>\n<meta name=\"description\" content=\"The reaction between quick lime (calcium oxide, CaO) and water (H\u2082O) to form slaked lime (calcium hydroxide, Ca(OH)\u2082) is represented by the equation: CaO(s) + H\u2082O(l) \u2192 Ca(OH)\u2082(s). This reaction is well-known for releasing a significant amount of heat, making it a highly exothermic process. Exothermic reactions are chemical reactions that release energy, typically in the form of heat or light. Endothermic reactions absorb energy. Displacement reactions involve one element displacing another from a compound. Decomposition reactions involve a single compound breaking down into simpler substances. The reaction of quick lime with water fits the definition of an exothermic reaction due to the large heat release, also sometimes classified as a combination reaction.\" \/>\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\/reaction-of-quick-lime-cao-with-water-to-produce-slaked-lime-caoh\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Reaction of quick lime (CaO) with water to produce slaked lime (Ca(OH)\" \/>\n<meta property=\"og:description\" content=\"The reaction between quick lime (calcium oxide, CaO) and water (H\u2082O) to form slaked lime (calcium hydroxide, Ca(OH)\u2082) is represented by the equation: CaO(s) + H\u2082O(l) \u2192 Ca(OH)\u2082(s). This reaction is well-known for releasing a significant amount of heat, making it a highly exothermic process. Exothermic reactions are chemical reactions that release energy, typically in the form of heat or light. Endothermic reactions absorb energy. Displacement reactions involve one element displacing another from a compound. Decomposition reactions involve a single compound breaking down into simpler substances. The reaction of quick lime with water fits the definition of an exothermic reaction due to the large heat release, also sometimes classified as a combination reaction.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/reaction-of-quick-lime-cao-with-water-to-produce-slaked-lime-caoh\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T06:53:47+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":"Reaction of quick lime (CaO) with water to produce slaked lime (Ca(OH)","description":"The reaction between quick lime (calcium oxide, CaO) and water (H\u2082O) to form slaked lime (calcium hydroxide, Ca(OH)\u2082) is represented by the equation: CaO(s) + H\u2082O(l) \u2192 Ca(OH)\u2082(s). This reaction is well-known for releasing a significant amount of heat, making it a highly exothermic process. Exothermic reactions are chemical reactions that release energy, typically in the form of heat or light. Endothermic reactions absorb energy. Displacement reactions involve one element displacing another from a compound. Decomposition reactions involve a single compound breaking down into simpler substances. 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Exothermic reactions are chemical reactions that release energy, typically in the form of heat or light. Endothermic reactions absorb energy. Displacement reactions involve one element displacing another from a compound. Decomposition reactions involve a single compound breaking down into simpler substances. 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