{"id":92651,"date":"2025-06-01T11:29:53","date_gmt":"2025-06-01T11:29:53","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=92651"},"modified":"2025-06-01T11:29:53","modified_gmt":"2025-06-01T11:29:53","slug":"catalytic-converter-transforms-waste-gases-from-the-engines-of-many-ca","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/catalytic-converter-transforms-waste-gases-from-the-engines-of-many-ca\/","title":{"rendered":"Catalytic converter transforms waste gases from the engines of many ca"},"content":{"rendered":"

Catalytic converter transforms waste gases from the engines of many cars into carbon dioxide, nitrogen and water. The catalyst is made of<\/p>\n

[amp_mcq option1=”platinum and copper” option2=”molybdenum and copper” option3=”platinum and rhodium” option4=”rhodium and molybdenum” correct=”option3″]<\/p>\n

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This question was previously asked in<\/div>\n
UPSC CISF-AC-EXE – 2019<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
Catalytic converters use precious metals like platinum, palladium, and rhodium as catalysts to convert harmful exhaust gases into less harmful substances.<\/section>\n
Platinum and rhodium are commonly used together in catalytic converters, particularly in three-way converters, which target carbon monoxide (CO), unburnt hydrocarbons (HC), and nitrogen oxides (NOx).<\/section>\n
Platinum is effective for oxidizing CO and HCs. Rhodium is effective for reducing NOx. Palladium is also used, often in conjunction with platinum, and is effective for oxidizing CO and HCs. Copper and molybdenum are not typically used as the primary catalysts in automotive catalytic converters.<\/section>\n","protected":false},"excerpt":{"rendered":"

Catalytic converter transforms waste gases from the engines of many cars into carbon dioxide, nitrogen and water. The catalyst is made of [amp_mcq option1=”platinum and copper” option2=”molybdenum and copper” option3=”platinum and rhodium” option4=”rhodium and molybdenum” correct=”option3″] This question was previously asked in UPSC CISF-AC-EXE – 2019 Download PDFAttempt Online Catalytic converters use precious metals like … <\/p>\n

Detailed SolutionCatalytic converter transforms waste gases from the engines of many ca<\/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":[1089],"tags":[1119,1096,1109],"class_list":["post-92651","post","type-post","status-publish","format-standard","hentry","category-upsc-cisf-ac-exe","tag-1119","tag-chemistry","tag-metals-minerals-ores-properties-uses","no-featured-image-padding"],"yoast_head":"\nCatalytic converter transforms waste gases from the engines of many ca<\/title>\n<meta name=\"description\" content=\"Catalytic converters use precious metals like platinum, palladium, and rhodium as catalysts to convert harmful exhaust gases into less harmful substances. Platinum and rhodium are commonly used together in catalytic converters, particularly in three-way converters, which target carbon monoxide (CO), unburnt hydrocarbons (HC), and nitrogen oxides (NOx).\" \/>\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\/catalytic-converter-transforms-waste-gases-from-the-engines-of-many-ca\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Catalytic converter transforms waste gases from the engines of many ca\" \/>\n<meta property=\"og:description\" content=\"Catalytic converters use precious metals like platinum, palladium, and rhodium as catalysts to convert harmful exhaust gases into less harmful substances. Platinum and rhodium are commonly used together in catalytic converters, particularly in three-way converters, which target carbon monoxide (CO), unburnt hydrocarbons (HC), and nitrogen oxides (NOx).\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/catalytic-converter-transforms-waste-gases-from-the-engines-of-many-ca\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T11:29:53+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":"Catalytic converter transforms waste gases from the engines of many ca","description":"Catalytic converters use precious metals like platinum, palladium, and rhodium as catalysts to convert harmful exhaust gases into less harmful substances. 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