{"id":87549,"date":"2025-06-01T06:47:25","date_gmt":"2025-06-01T06:47:25","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=87549"},"modified":"2025-06-01T06:47:25","modified_gmt":"2025-06-01T06:47:25","slug":"which-one-of-the-following-is-not-true-for-bleaching-powder","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-is-not-true-for-bleaching-powder\/","title":{"rendered":"Which one of the following is NOT true for bleaching powder ?"},"content":{"rendered":"

Which one of the following is NOT true for bleaching powder ?<\/p>\n

[amp_mcq option1=”It is used as a reducing agent in chemical industries” option2=”It is used for bleaching wood pulp in paper factories” option3=”It is used for disinfecting drinking water” option4=”It is used for bleaching linen in textile industry” correct=”option1″]<\/p>\n

\n
\n
This question was previously asked in<\/div>\n
UPSC NDA-1 – 2018<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
\nThe correct answer is A) It is used as a reducing agent in chemical industries.
\n<\/section>\n
\nBleaching powder, chemically Calcium Oxychloride (CaOCl\u2082), is a strong oxidizing agent due to the presence of available chlorine. It acts by releasing nascent oxygen or chlorine, which oxidizes coloured substances or kills microbes.
\nA) Reducing agents cause reduction and are themselves oxidized. Bleaching powder’s action is primarily oxidation, not reduction. Therefore, it is used as an *oxidizing* agent, not a reducing agent. This statement is NOT true.
\nB), C), and D) are correct uses of bleaching powder. It is widely used as a bleaching agent for materials like wood pulp and textiles (linen) and as a disinfectant for water supplies and surfaces.
\n<\/section>\n
\nThe bleaching and disinfecting properties of bleaching powder are due to its decomposition in the presence of carbon dioxide or acids, releasing hypochlorous acid (HOCl) or chlorine gas, which are powerful oxidizing agents. CaOCl\u2082 + CO\u2082 \u2192 CaCO\u2083 + Cl\u2082 or CaOCl\u2082 + 2HCl \u2192 CaCl\u2082 + H\u2082O + Cl\u2082 or CaOCl\u2082 + H\u2082O \u2192 Ca(OH)\u2082 + Cl\u2082
\n<\/section>\n","protected":false},"excerpt":{"rendered":"

Which one of the following is NOT true for bleaching powder ? [amp_mcq option1=”It is used as a reducing agent in chemical industries” option2=”It is used for bleaching wood pulp in paper factories” option3=”It is used for disinfecting drinking water” option4=”It is used for bleaching linen in textile industry” correct=”option1″] This question was previously asked … <\/p>\n

Detailed SolutionWhich one of the following is NOT true for bleaching powder ?<\/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":[1114,1202,1096],"class_list":["post-87549","post","type-post","status-publish","format-standard","hentry","category-upsc-nda-1","tag-1114","tag-acid-base-and-salt","tag-chemistry","no-featured-image-padding"],"yoast_head":"\nWhich one of the following is NOT true for bleaching powder ?<\/title>\n<meta name=\"description\" content=\"The correct answer is A) It is used as a reducing agent in chemical industries. Bleaching powder, chemically Calcium Oxychloride (CaOCl\u2082), is a strong oxidizing agent due to the presence of available chlorine. It acts by releasing nascent oxygen or chlorine, which oxidizes coloured substances or kills microbes. A) Reducing agents cause reduction and are themselves oxidized. Bleaching powder's action is primarily oxidation, not reduction. Therefore, it is used as an *oxidizing* agent, not a reducing agent. This statement is NOT true. B), C), and D) are correct uses of bleaching powder. It is widely used as a bleaching agent for materials like wood pulp and textiles (linen) and as a disinfectant for water supplies and surfaces.\" \/>\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\/which-one-of-the-following-is-not-true-for-bleaching-powder\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Which one of the following is NOT true for bleaching powder ?\" \/>\n<meta property=\"og:description\" content=\"The correct answer is A) It is used as a reducing agent in chemical industries. Bleaching powder, chemically Calcium Oxychloride (CaOCl\u2082), is a strong oxidizing agent due to the presence of available chlorine. It acts by releasing nascent oxygen or chlorine, which oxidizes coloured substances or kills microbes. A) Reducing agents cause reduction and are themselves oxidized. Bleaching powder's action is primarily oxidation, not reduction. Therefore, it is used as an *oxidizing* agent, not a reducing agent. This statement is NOT true. B), C), and D) are correct uses of bleaching powder. It is widely used as a bleaching agent for materials like wood pulp and textiles (linen) and as a disinfectant for water supplies and surfaces.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-is-not-true-for-bleaching-powder\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T06:47:25+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":"Which one of the following is NOT true for bleaching powder ?","description":"The correct answer is A) It is used as a reducing agent in chemical industries. 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It is widely used as a bleaching agent for materials like wood pulp and textiles (linen) and as a disinfectant for water supplies and surfaces.","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\/which-one-of-the-following-is-not-true-for-bleaching-powder\/","og_locale":"en_US","og_type":"article","og_title":"Which one of the following is NOT true for bleaching powder ?","og_description":"The correct answer is A) It is used as a reducing agent in chemical industries. Bleaching powder, chemically Calcium Oxychloride (CaOCl\u2082), is a strong oxidizing agent due to the presence of available chlorine. It acts by releasing nascent oxygen or chlorine, which oxidizes coloured substances or kills microbes. A) Reducing agents cause reduction and are themselves oxidized. Bleaching powder's action is primarily oxidation, not reduction. 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It is widely used as a bleaching agent for materials like wood pulp and textiles (linen) and as a disinfectant for water supplies and surfaces.","og_url":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-is-not-true-for-bleaching-powder\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2025-06-01T06:47:25+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\/which-one-of-the-following-is-not-true-for-bleaching-powder\/","url":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-is-not-true-for-bleaching-powder\/","name":"Which one of the following is NOT true for bleaching powder ?","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2025-06-01T06:47:25+00:00","dateModified":"2025-06-01T06:47:25+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"description":"The correct answer is A) It is used as a reducing agent in chemical industries. 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