{"id":84994,"date":"2025-06-01T02:59:17","date_gmt":"2025-06-01T02:59:17","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=84994"},"modified":"2025-06-01T02:59:17","modified_gmt":"2025-06-01T02:59:17","slug":"the-number-of-water-molecules-associated-with-copper-sulphate-molecule","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/the-number-of-water-molecules-associated-with-copper-sulphate-molecule\/","title":{"rendered":"The number of water molecules associated with copper sulphate molecule"},"content":{"rendered":"

The number of water molecules associated with copper sulphate molecule to form crystals is<\/p>\n

[amp_mcq option1=”2″ option2=”4″ option3=”5″ option4=”6″ correct=”option3″]<\/p>\n

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\n
This question was previously asked in<\/div>\n
UPSC CDS-1 – 2020<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
\nCopper sulphate commonly exists as a hydrate with the chemical formula CuSO\u2084 · 5H\u2082O. This form is copper(II) sulfate pentahydrate, which is bright blue. The notation ‘· 5H\u2082O’ indicates that there are 5 water molecules associated with each unit of copper sulphate in the crystal lattice. These water molecules are called water of crystallization.
\n<\/section>\n
\n– Crystalline copper sulphate is a hydrate.
\n– The formula of common copper sulphate crystals is CuSO\u2084 · 5H\u2082O.
\n– This means 5 water molecules are associated with each CuSO\u2084 unit.
\n<\/section>\n
\nAnhydrous copper sulphate (CuSO\u2084), which has no water of crystallization, is white. When water is added to anhydrous copper sulphate, it forms the blue pentahydrate, and this reaction is exothermic. This property makes anhydrous copper sulphate useful as a test for the presence of water.
\n<\/section>\n","protected":false},"excerpt":{"rendered":"

The number of water molecules associated with copper sulphate molecule to form crystals is [amp_mcq option1=”2″ option2=”4″ option3=”5″ option4=”6″ correct=”option3″] This question was previously asked in UPSC CDS-1 – 2020 Download PDFAttempt Online Copper sulphate commonly exists as a hydrate with the chemical formula CuSO\u2084 · 5H\u2082O. This form is copper(II) sulfate pentahydrate, which is … <\/p>\n

Detailed SolutionThe number of water molecules associated with copper sulphate molecule<\/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":[1288,1202,1096],"class_list":["post-84994","post","type-post","status-publish","format-standard","hentry","category-upsc-cds-1","tag-1288","tag-acid-base-and-salt","tag-chemistry","no-featured-image-padding"],"yoast_head":"\nThe number of water molecules associated with copper sulphate molecule<\/title>\n<meta name=\"description\" content=\"Copper sulphate commonly exists as a hydrate with the chemical formula CuSO\u2084 · 5H\u2082O. This form is copper(II) sulfate pentahydrate, which is bright blue. The notation '· 5H\u2082O' indicates that there are 5 water molecules associated with each unit of copper sulphate in the crystal lattice. These water molecules are called water of crystallization. - Crystalline copper sulphate is a hydrate. - The formula of common copper sulphate crystals is CuSO\u2084 · 5H\u2082O. - This means 5 water molecules are associated with each CuSO\u2084 unit.\" \/>\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\/the-number-of-water-molecules-associated-with-copper-sulphate-molecule\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"The number of water molecules associated with copper sulphate molecule\" \/>\n<meta property=\"og:description\" content=\"Copper sulphate commonly exists as a hydrate with the chemical formula CuSO\u2084 · 5H\u2082O. This form is copper(II) sulfate pentahydrate, which is bright blue. The notation '· 5H\u2082O' indicates that there are 5 water molecules associated with each unit of copper sulphate in the crystal lattice. These water molecules are called water of crystallization. - Crystalline copper sulphate is a hydrate. - The formula of common copper sulphate crystals is CuSO\u2084 · 5H\u2082O. - This means 5 water molecules are associated with each CuSO\u2084 unit.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/the-number-of-water-molecules-associated-with-copper-sulphate-molecule\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T02:59:17+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":"The number of water molecules associated with copper sulphate molecule","description":"Copper sulphate commonly exists as a hydrate with the chemical formula CuSO\u2084 · 5H\u2082O. This form is copper(II) sulfate pentahydrate, which is bright blue. The notation '· 5H\u2082O' indicates that there are 5 water molecules associated with each unit of copper sulphate in the crystal lattice. These water molecules are called water of crystallization. - Crystalline copper sulphate is a hydrate. - The formula of common copper sulphate crystals is CuSO\u2084 · 5H\u2082O. - This means 5 water molecules are associated with each CuSO\u2084 unit.","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\/the-number-of-water-molecules-associated-with-copper-sulphate-molecule\/","og_locale":"en_US","og_type":"article","og_title":"The number of water molecules associated with copper sulphate molecule","og_description":"Copper sulphate commonly exists as a hydrate with the chemical formula CuSO\u2084 · 5H\u2082O. This form is copper(II) sulfate pentahydrate, which is bright blue. The notation '· 5H\u2082O' indicates that there are 5 water molecules associated with each unit of copper sulphate in the crystal lattice. These water molecules are called water of crystallization. - Crystalline copper sulphate is a hydrate. - The formula of common copper sulphate crystals is CuSO\u2084 · 5H\u2082O. - This means 5 water molecules are associated with each CuSO\u2084 unit.","og_url":"https:\/\/exam.pscnotes.com\/mcq\/the-number-of-water-molecules-associated-with-copper-sulphate-molecule\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2025-06-01T02:59:17+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\/the-number-of-water-molecules-associated-with-copper-sulphate-molecule\/","url":"https:\/\/exam.pscnotes.com\/mcq\/the-number-of-water-molecules-associated-with-copper-sulphate-molecule\/","name":"The number of water molecules associated with copper sulphate molecule","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2025-06-01T02:59:17+00:00","dateModified":"2025-06-01T02:59:17+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"description":"Copper sulphate commonly exists as a hydrate with the chemical formula CuSO\u2084 · 5H\u2082O. This form is copper(II) sulfate pentahydrate, which is bright blue. The notation '· 5H\u2082O' indicates that there are 5 water molecules associated with each unit of copper sulphate in the crystal lattice. 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