{"id":87344,"date":"2025-06-01T06:41:19","date_gmt":"2025-06-01T06:41:19","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=87344"},"modified":"2025-06-01T06:41:19","modified_gmt":"2025-06-01T06:41:19","slug":"density-of-water-is","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/density-of-water-is\/","title":{"rendered":"Density of water is"},"content":{"rendered":"

Density of water is<\/p>\n

[amp_mcq option1=”maximum at 0\u00b0C” option2=”minimum at 0\u00b0C” option3=”maximum at 4\u00b0C” option4=”minimum at \u2013 4\u00b0C” correct=”option3″]<\/p>\n

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This question was previously asked in<\/div>\n
UPSC NDA-1 – 2016<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
Water exhibits an anomalous expansion property. Unlike most substances which become denser as they cool (contracting), water’s density increases as it cools from boiling point down to 4\u00b0C. However, when cooled further from 4\u00b0C down to 0\u00b0C, it expands and its density decreases. At 0\u00b0C, when it freezes into ice, its density drops significantly. Therefore, the density of water is maximum at 4\u00b0C.<\/section>\n
Water has maximum density at 4\u00b0C. This anomalous expansion is crucial for aquatic life in cold climates, as ice floats and water at 4\u00b0C remains at the bottom of lakes, preventing them from freezing solid.<\/section>\n
The density of pure water at standard atmospheric pressure is approximately 999.97 kg\/m\u00b3 at 0\u00b0C, 1000 kg\/m\u00b3 at 4\u00b0C, and decreases gradually as temperature increases beyond 4\u00b0C. Ice (solid water) has a density of about 917 kg\/m\u00b3.<\/section>\n","protected":false},"excerpt":{"rendered":"

Density of water is [amp_mcq option1=”maximum at 0\u00b0C” option2=”minimum at 0\u00b0C” option3=”maximum at 4\u00b0C” option4=”minimum at \u2013 4\u00b0C” correct=”option3″] This question was previously asked in UPSC NDA-1 – 2016 Download PDFAttempt Online Water exhibits an anomalous expansion property. Unlike most substances which become denser as they cool (contracting), water’s density increases as it cools from … <\/p>\n

Detailed SolutionDensity of water is<\/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":[1098,1160,1128],"class_list":["post-87344","post","type-post","status-publish","format-standard","hentry","category-upsc-nda-1","tag-1098","tag-physical-properties-of-materials","tag-physics","no-featured-image-padding"],"yoast_head":"\nDensity of water is<\/title>\n<meta name=\"description\" content=\"Water exhibits an anomalous expansion property. Unlike most substances which become denser as they cool (contracting), water's density increases as it cools from boiling point down to 4\u00b0C. However, when cooled further from 4\u00b0C down to 0\u00b0C, it expands and its density decreases. At 0\u00b0C, when it freezes into ice, its density drops significantly. Therefore, the density of water is maximum at 4\u00b0C. Water has maximum density at 4\u00b0C. This anomalous expansion is crucial for aquatic life in cold climates, as ice floats and water at 4\u00b0C remains at the bottom of lakes, preventing them from freezing solid.\" \/>\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\/density-of-water-is\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Density of water is\" \/>\n<meta property=\"og:description\" content=\"Water exhibits an anomalous expansion property. Unlike most substances which become denser as they cool (contracting), water's density increases as it cools from boiling point down to 4\u00b0C. However, when cooled further from 4\u00b0C down to 0\u00b0C, it expands and its density decreases. At 0\u00b0C, when it freezes into ice, its density drops significantly. Therefore, the density of water is maximum at 4\u00b0C. Water has maximum density at 4\u00b0C. This anomalous expansion is crucial for aquatic life in cold climates, as ice floats and water at 4\u00b0C remains at the bottom of lakes, preventing them from freezing solid.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/density-of-water-is\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T06:41:19+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":"Density of water is","description":"Water exhibits an anomalous expansion property. 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Unlike most substances which become denser as they cool (contracting), water's density increases as it cools from boiling point down to 4\u00b0C. However, when cooled further from 4\u00b0C down to 0\u00b0C, it expands and its density decreases. At 0\u00b0C, when it freezes into ice, its density drops significantly. Therefore, the density of water is maximum at 4\u00b0C. Water has maximum density at 4\u00b0C. This anomalous expansion is crucial for aquatic life in cold climates, as ice floats and water at 4\u00b0C remains at the bottom of lakes, preventing them from freezing solid.","og_url":"https:\/\/exam.pscnotes.com\/mcq\/density-of-water-is\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2025-06-01T06:41:19+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\/density-of-water-is\/","url":"https:\/\/exam.pscnotes.com\/mcq\/density-of-water-is\/","name":"Density of water is","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2025-06-01T06:41:19+00:00","dateModified":"2025-06-01T06:41:19+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"description":"Water exhibits an anomalous expansion property. Unlike most substances which become denser as they cool (contracting), water's density increases as it cools from boiling point down to 4\u00b0C. However, when cooled further from 4\u00b0C down to 0\u00b0C, it expands and its density decreases. At 0\u00b0C, when it freezes into ice, its density drops significantly. Therefore, the density of water is maximum at 4\u00b0C. Water has maximum density at 4\u00b0C. 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