{"id":86536,"date":"2025-06-01T03:49:51","date_gmt":"2025-06-01T03:49:51","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=86536"},"modified":"2025-06-01T03:49:51","modified_gmt":"2025-06-01T03:49:51","slug":"which-one-among-the-following-is-used-in-bleaching-of-paper","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/which-one-among-the-following-is-used-in-bleaching-of-paper\/","title":{"rendered":"Which one among the following is used in bleaching of paper ?"},"content":{"rendered":"<p>Which one among the following is used in bleaching of paper ?<\/p>\n<p>[amp_mcq option1=&#8221;Chloride&#8221; option2=&#8221;Chlorobenzene&#8221; option3=&#8221;Ammonium chloride&#8221; option4=&#8221;Hydrochloric acid&#8221; 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-2 &#8211; 2024<\/div>\n<\/div>\n<div class=\"pyq-exam-psc-buttons\"><a href=\"\/pyq\/pyq-upsc-cds-2-2024.pdf\" target=\"_blank\" class=\"psc-pdf-button\" rel=\"noopener\">Download PDF<\/a><a href=\"\/pyq-upsc-cds-2-2024\" target=\"_blank\" class=\"psc-attempt-button\" rel=\"noopener\">Attempt Online<\/a><\/div>\n<\/div>\n<section id=\"pyq-correct-answer\">Chloride (referring to chlorine-based compounds) is used in the bleaching of paper.<\/section>\n<section id=\"pyq-key-points\">Bleaching of paper pulp is primarily done using oxidizing agents to remove lignin and whiten the pulp. Historically, elemental chlorine (Cl\u2082) was used, but it has largely been replaced by more environmentally friendly chlorine-based compounds like chlorine dioxide (ClO\u2082) or processes using oxygen, hydrogen peroxide, or ozone. Among the given options, &#8220;Chloride&#8221; is the most general term that points towards the use of chlorine-based bleaching agents.<\/section>\n<section id=\"pyq-additional-information\">Options B (Chlorobenzene) is an organic solvent and chemical intermediate, not a paper bleach. Option C (Ammonium chloride) is a salt used in various applications but not paper bleaching. Option D (Hydrochloric acid) is a strong acid, used in some industrial processes but not as the primary bleaching agent for paper pulp.<\/section>\n","protected":false},"excerpt":{"rendered":"<p>Which one among the following is used in bleaching of paper ? [amp_mcq option1=&#8221;Chloride&#8221; option2=&#8221;Chlorobenzene&#8221; option3=&#8221;Ammonium chloride&#8221; option4=&#8221;Hydrochloric acid&#8221; correct=&#8221;option1&#8243;] This question was previously asked in UPSC CDS-2 &#8211; 2024 Download PDFAttempt Online Chloride (referring to chlorine-based compounds) is used in the bleaching of paper. Bleaching of paper pulp is primarily done using oxidizing agents &#8230; <\/p>\n<p class=\"read-more-container\"><a title=\"Which one among the following is used in bleaching of paper ?\" class=\"read-more button\" href=\"https:\/\/exam.pscnotes.com\/mcq\/which-one-among-the-following-is-used-in-bleaching-of-paper\/#more-86536\">Detailed Solution<span class=\"screen-reader-text\">Which one among the following is used in bleaching of paper ?<\/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":[1088],"tags":[1103,1096,1245],"class_list":["post-86536","post","type-post","status-publish","format-standard","hentry","category-upsc-cds-2","tag-1103","tag-chemistry","tag-sulphur-nitrogen-halogen-inert-gases","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>Which one among the following is used in bleaching of paper ?<\/title>\n<meta name=\"description\" content=\"Chloride (referring to chlorine-based compounds) is used in the bleaching of paper. Bleaching of paper pulp is primarily done using oxidizing agents to remove lignin and whiten the pulp. Historically, elemental chlorine (Cl\u2082) was used, but it has largely been replaced by more environmentally friendly chlorine-based compounds like chlorine dioxide (ClO\u2082) or processes using oxygen, hydrogen peroxide, or ozone. Among the given options, &quot;Chloride&quot; is the most general term that points towards the use of chlorine-based bleaching agents.\" \/>\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-among-the-following-is-used-in-bleaching-of-paper\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Which one among the following is used in bleaching of paper ?\" \/>\n<meta property=\"og:description\" content=\"Chloride (referring to chlorine-based compounds) is used in the bleaching of paper. Bleaching of paper pulp is primarily done using oxidizing agents to remove lignin and whiten the pulp. Historically, elemental chlorine (Cl\u2082) was used, but it has largely been replaced by more environmentally friendly chlorine-based compounds like chlorine dioxide (ClO\u2082) or processes using oxygen, hydrogen peroxide, or ozone. Among the given options, &quot;Chloride&quot; is the most general term that points towards the use of chlorine-based bleaching agents.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/which-one-among-the-following-is-used-in-bleaching-of-paper\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T03:49:51+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 among the following is used in bleaching of paper ?","description":"Chloride (referring to chlorine-based compounds) is used in the bleaching of paper. Bleaching of paper pulp is primarily done using oxidizing agents to remove lignin and whiten the pulp. Historically, elemental chlorine (Cl\u2082) was used, but it has largely been replaced by more environmentally friendly chlorine-based compounds like chlorine dioxide (ClO\u2082) or processes using oxygen, hydrogen peroxide, or ozone. Among the given options, \"Chloride\" is the most general term that points towards the use of chlorine-based bleaching agents.","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-among-the-following-is-used-in-bleaching-of-paper\/","og_locale":"en_US","og_type":"article","og_title":"Which one among the following is used in bleaching of paper ?","og_description":"Chloride (referring to chlorine-based compounds) is used in the bleaching of paper. Bleaching of paper pulp is primarily done using oxidizing agents to remove lignin and whiten the pulp. Historically, elemental chlorine (Cl\u2082) was used, but it has largely been replaced by more environmentally friendly chlorine-based compounds like chlorine dioxide (ClO\u2082) or processes using oxygen, hydrogen peroxide, or ozone. Among the given options, \"Chloride\" is the most general term that points towards the use of chlorine-based bleaching agents.","og_url":"https:\/\/exam.pscnotes.com\/mcq\/which-one-among-the-following-is-used-in-bleaching-of-paper\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2025-06-01T03:49:51+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-among-the-following-is-used-in-bleaching-of-paper\/","url":"https:\/\/exam.pscnotes.com\/mcq\/which-one-among-the-following-is-used-in-bleaching-of-paper\/","name":"Which one among the following is used in bleaching of paper ?","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2025-06-01T03:49:51+00:00","dateModified":"2025-06-01T03:49:51+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"description":"Chloride (referring to chlorine-based compounds) is used in the bleaching of paper. Bleaching of paper pulp is primarily done using oxidizing agents to remove lignin and whiten the pulp. Historically, elemental chlorine (Cl\u2082) was used, but it has largely been replaced by more environmentally friendly chlorine-based compounds like chlorine dioxide (ClO\u2082) or processes using oxygen, hydrogen peroxide, or ozone. 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