{"id":85205,"date":"2025-06-01T03:07:47","date_gmt":"2025-06-01T03:07:47","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=85205"},"modified":"2025-06-01T03:07:47","modified_gmt":"2025-06-01T03:07:47","slug":"which-one-of-the-following-is-used-in-soda-acid-fire-extinguishers","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-is-used-in-soda-acid-fire-extinguishers\/","title":{"rendered":"Which one of the following is used in soda-acid fire extinguishers ?"},"content":{"rendered":"

Which one of the following is used in soda-acid fire extinguishers ?<\/p>\n

[amp_mcq option1=”Sodium chloride” option2=”Sodium hydrogen carbonate” option3=”Calcium hydroxide” option4=”Acetic acid” correct=”option2″]<\/p>\n

\n
\n
This question was previously asked in<\/div>\n
UPSC CDS-1 – 2021<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
\nSoda-acid fire extinguishers utilize a chemical reaction to produce carbon dioxide gas, which is used to extinguish fires. The primary components involved in this reaction are an acid (commonly sulfuric acid) and sodium hydrogen carbonate (NaHCO\u2083), also known as sodium bicarbonate or baking soda.
\n<\/section>\n
\nWhen the fire extinguisher is activated, the acid mixes with the sodium hydrogen carbonate solution. The reaction is: 2NaHCO\u2083(aq) + H\u2082SO\u2084(aq) \u2192 Na\u2082SO\u2084(aq) + 2H\u2082O(l) + 2CO\u2082(g). The rapid production of carbon dioxide gas builds up pressure, expelling the mixture out of the nozzle. The CO\u2082 gas also helps smother the fire by displacing oxygen, and the water cools the burning material.
\n<\/section>\n
\nSoda-acid fire extinguishers are effective against Class A fires (ordinary combustibles like wood, paper, and cloth) but are not suitable for Class B (flammable liquids), Class C (electrical equipment), or Class D (combustible metals) fires. Using them on electrical fires is particularly dangerous due to the presence of water.
\n<\/section>\n","protected":false},"excerpt":{"rendered":"

Which one of the following is used in soda-acid fire extinguishers ? [amp_mcq option1=”Sodium chloride” option2=”Sodium hydrogen carbonate” option3=”Calcium hydroxide” option4=”Acetic acid” correct=”option2″] This question was previously asked in UPSC CDS-1 – 2021 Download PDFAttempt Online Soda-acid fire extinguishers utilize a chemical reaction to produce carbon dioxide gas, which is used to extinguish fires. The … <\/p>\n

Detailed SolutionWhich one of the following is used in soda-acid fire extinguishers ?<\/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":[1110,1202,1096],"class_list":["post-85205","post","type-post","status-publish","format-standard","hentry","category-upsc-cds-1","tag-1110","tag-acid-base-and-salt","tag-chemistry","no-featured-image-padding"],"yoast_head":"\nWhich one of the following is used in soda-acid fire extinguishers ?<\/title>\n<meta name=\"description\" content=\"Soda-acid fire extinguishers utilize a chemical reaction to produce carbon dioxide gas, which is used to extinguish fires. The primary components involved in this reaction are an acid (commonly sulfuric acid) and sodium hydrogen carbonate (NaHCO\u2083), also known as sodium bicarbonate or baking soda. When the fire extinguisher is activated, the acid mixes with the sodium hydrogen carbonate solution. The reaction is: 2NaHCO\u2083(aq) + H\u2082SO\u2084(aq) \u2192 Na\u2082SO\u2084(aq) + 2H\u2082O(l) + 2CO\u2082(g). The rapid production of carbon dioxide gas builds up pressure, expelling the mixture out of the nozzle. The CO\u2082 gas also helps smother the fire by displacing oxygen, and the water cools the burning material.\" \/>\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-used-in-soda-acid-fire-extinguishers\/\" \/>\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 used in soda-acid fire extinguishers ?\" \/>\n<meta property=\"og:description\" content=\"Soda-acid fire extinguishers utilize a chemical reaction to produce carbon dioxide gas, which is used to extinguish fires. The primary components involved in this reaction are an acid (commonly sulfuric acid) and sodium hydrogen carbonate (NaHCO\u2083), also known as sodium bicarbonate or baking soda. When the fire extinguisher is activated, the acid mixes with the sodium hydrogen carbonate solution. The reaction is: 2NaHCO\u2083(aq) + H\u2082SO\u2084(aq) \u2192 Na\u2082SO\u2084(aq) + 2H\u2082O(l) + 2CO\u2082(g). The rapid production of carbon dioxide gas builds up pressure, expelling the mixture out of the nozzle. The CO\u2082 gas also helps smother the fire by displacing oxygen, and the water cools the burning material.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-is-used-in-soda-acid-fire-extinguishers\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T03:07:47+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":"Which one of the following is used in soda-acid fire extinguishers ?","description":"Soda-acid fire extinguishers utilize a chemical reaction to produce carbon dioxide gas, which is used to extinguish fires. The primary components involved in this reaction are an acid (commonly sulfuric acid) and sodium hydrogen carbonate (NaHCO\u2083), also known as sodium bicarbonate or baking soda. When the fire extinguisher is activated, the acid mixes with the sodium hydrogen carbonate solution. The reaction is: 2NaHCO\u2083(aq) + H\u2082SO\u2084(aq) \u2192 Na\u2082SO\u2084(aq) + 2H\u2082O(l) + 2CO\u2082(g). The rapid production of carbon dioxide gas builds up pressure, expelling the mixture out of the nozzle. The CO\u2082 gas also helps smother the fire by displacing oxygen, and the water cools the burning material.","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-used-in-soda-acid-fire-extinguishers\/","og_locale":"en_US","og_type":"article","og_title":"Which one of the following is used in soda-acid fire extinguishers ?","og_description":"Soda-acid fire extinguishers utilize a chemical reaction to produce carbon dioxide gas, which is used to extinguish fires. The primary components involved in this reaction are an acid (commonly sulfuric acid) and sodium hydrogen carbonate (NaHCO\u2083), also known as sodium bicarbonate or baking soda. When the fire extinguisher is activated, the acid mixes with the sodium hydrogen carbonate solution. The reaction is: 2NaHCO\u2083(aq) + H\u2082SO\u2084(aq) \u2192 Na\u2082SO\u2084(aq) + 2H\u2082O(l) + 2CO\u2082(g). The rapid production of carbon dioxide gas builds up pressure, expelling the mixture out of the nozzle. The CO\u2082 gas also helps smother the fire by displacing oxygen, and the water cools the burning material.","og_url":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-is-used-in-soda-acid-fire-extinguishers\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2025-06-01T03:07:47+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-used-in-soda-acid-fire-extinguishers\/","url":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-is-used-in-soda-acid-fire-extinguishers\/","name":"Which one of the following is used in soda-acid fire extinguishers ?","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2025-06-01T03:07:47+00:00","dateModified":"2025-06-01T03:07:47+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"description":"Soda-acid fire extinguishers utilize a chemical reaction to produce carbon dioxide gas, which is used to extinguish fires. 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