{"id":88934,"date":"2025-06-01T07:25:07","date_gmt":"2025-06-01T07:25:07","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=88934"},"modified":"2025-06-01T07:25:07","modified_gmt":"2025-06-01T07:25:07","slug":"which-one-of-the-following-metals-does-not-react-with-cold-water-to-li","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-metals-does-not-react-with-cold-water-to-li\/","title":{"rendered":"Which one of the following metals does NOT react with cold water to li"},"content":{"rendered":"

Which one of the following metals does NOT react with cold water to liberate hydrogen gas ?<\/p>\n

[amp_mcq option1=”Potassium” option2=”Iron” option3=”Calcium” option4=”Sodium” correct=”option2″]<\/p>\n

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This question was previously asked in<\/div>\n
UPSC NDA-2 – 2023<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
Iron (Fe) is a less reactive metal compared to Potassium (K), Sodium (Na), and Calcium (Ca). Highly reactive metals like K and Na react vigorously with cold water, producing hydrogen gas and metal hydroxides. Calcium also reacts with cold water, though less vigorously, producing hydrogen gas and calcium hydroxide. Iron, however, does not react with cold water. It reacts slowly with hot water and vigorously with steam to produce hydrogen gas and metal oxide.<\/section>\n
The reactivity of metals determines their reaction with water. More reactive metals displace hydrogen from cold water; moderately reactive metals displace hydrogen from hot water or steam; less reactive metals do not react with water at all.<\/section>\n
The general order of reactivity of these metals with water is K > Na > Ca > Fe. Potassium and Sodium react violently with cold water. Calcium reacts steadily with cold water. Iron reacts with steam (very hot water) to form iron oxides and hydrogen gas.<\/section>\n","protected":false},"excerpt":{"rendered":"

Which one of the following metals does NOT react with cold water to liberate hydrogen gas ? [amp_mcq option1=”Potassium” option2=”Iron” option3=”Calcium” option4=”Sodium” correct=”option2″] This question was previously asked in UPSC NDA-2 – 2023 Download PDFAttempt Online Iron (Fe) is a less reactive metal compared to Potassium (K), Sodium (Na), and Calcium (Ca). Highly reactive metals … <\/p>\n

Detailed SolutionWhich one of the following metals does NOT react with cold water to li<\/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":[1094],"tags":[1105,1096,1109],"class_list":["post-88934","post","type-post","status-publish","format-standard","hentry","category-upsc-nda-2","tag-1105","tag-chemistry","tag-metals-minerals-ores-properties-uses","no-featured-image-padding"],"yoast_head":"\nWhich one of the following metals does NOT react with cold water to li<\/title>\n<meta name=\"description\" content=\"Iron (Fe) is a less reactive metal compared to Potassium (K), Sodium (Na), and Calcium (Ca). Highly reactive metals like K and Na react vigorously with cold water, producing hydrogen gas and metal hydroxides. Calcium also reacts with cold water, though less vigorously, producing hydrogen gas and calcium hydroxide. Iron, however, does not react with cold water. It reacts slowly with hot water and vigorously with steam to produce hydrogen gas and metal oxide. The reactivity of metals determines their reaction with water. More reactive metals displace hydrogen from cold water; moderately reactive metals displace hydrogen from hot water or steam; less reactive metals do not react with water at all.\" \/>\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-metals-does-not-react-with-cold-water-to-li\/\" \/>\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 metals does NOT react with cold water to li\" \/>\n<meta property=\"og:description\" content=\"Iron (Fe) is a less reactive metal compared to Potassium (K), Sodium (Na), and Calcium (Ca). Highly reactive metals like K and Na react vigorously with cold water, producing hydrogen gas and metal hydroxides. Calcium also reacts with cold water, though less vigorously, producing hydrogen gas and calcium hydroxide. Iron, however, does not react with cold water. It reacts slowly with hot water and vigorously with steam to produce hydrogen gas and metal oxide. The reactivity of metals determines their reaction with water. More reactive metals displace hydrogen from cold water; moderately reactive metals displace hydrogen from hot water or steam; less reactive metals do not react with water at all.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-metals-does-not-react-with-cold-water-to-li\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T07:25:07+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 metals does NOT react with cold water to li","description":"Iron (Fe) is a less reactive metal compared to Potassium (K), Sodium (Na), and Calcium (Ca). Highly reactive metals like K and Na react vigorously with cold water, producing hydrogen gas and metal hydroxides. Calcium also reacts with cold water, though less vigorously, producing hydrogen gas and calcium hydroxide. Iron, however, does not react with cold water. It reacts slowly with hot water and vigorously with steam to produce hydrogen gas and metal oxide. The reactivity of metals determines their reaction with water. More reactive metals displace hydrogen from cold water; moderately reactive metals displace hydrogen from hot water or steam; less reactive metals do not react with water at all.","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-metals-does-not-react-with-cold-water-to-li\/","og_locale":"en_US","og_type":"article","og_title":"Which one of the following metals does NOT react with cold water to li","og_description":"Iron (Fe) is a less reactive metal compared to Potassium (K), Sodium (Na), and Calcium (Ca). Highly reactive metals like K and Na react vigorously with cold water, producing hydrogen gas and metal hydroxides. Calcium also reacts with cold water, though less vigorously, producing hydrogen gas and calcium hydroxide. Iron, however, does not react with cold water. It reacts slowly with hot water and vigorously with steam to produce hydrogen gas and metal oxide. The reactivity of metals determines their reaction with water. More reactive metals displace hydrogen from cold water; moderately reactive metals displace hydrogen from hot water or steam; less reactive metals do not react with water at all.","og_url":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-metals-does-not-react-with-cold-water-to-li\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2025-06-01T07:25:07+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-metals-does-not-react-with-cold-water-to-li\/","url":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-metals-does-not-react-with-cold-water-to-li\/","name":"Which one of the following metals does NOT react with cold water to li","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2025-06-01T07:25:07+00:00","dateModified":"2025-06-01T07:25:07+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"description":"Iron (Fe) is a less reactive metal compared to Potassium (K), Sodium (Na), and Calcium (Ca). Highly reactive metals like K and Na react vigorously with cold water, producing hydrogen gas and metal hydroxides. Calcium also reacts with cold water, though less vigorously, producing hydrogen gas and calcium hydroxide. Iron, however, does not react with cold water. It reacts slowly with hot water and vigorously with steam to produce hydrogen gas and metal oxide. The reactivity of metals determines their reaction with water. 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