{"id":87444,"date":"2025-06-01T06:44:19","date_gmt":"2025-06-01T06:44:19","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=87444"},"modified":"2025-06-01T06:44:19","modified_gmt":"2025-06-01T06:44:19","slug":"temporary-hardness-in-water-is-due-to-which-one-of-the-following-of-ca","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/temporary-hardness-in-water-is-due-to-which-one-of-the-following-of-ca\/","title":{"rendered":"Temporary hardness in water is due to which one of the following of Ca"},"content":{"rendered":"

Temporary hardness in water is due to which one of the following of Calcium and Magnesium ?<\/p>\n

[amp_mcq option1=”Hydrogen carbonates” option2=”Carbonates” option3=”Chlorides” option4=”Sulphates” correct=”option1″]<\/p>\n

\n
\n
This question was previously asked in<\/div>\n
UPSC NDA-1 – 2017<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
\nTemporary hardness in water is caused by the presence of dissolved bicarbonates (also known as hydrogen carbonates) of calcium and magnesium, such as Ca(HCO3)2 and Mg(HCO3)2. These can precipitate out as insoluble carbonates when the water is boiled, thereby removing the hardness.
\n<\/section>\n
\nTemporary hardness is due to soluble bicarbonates of calcium and magnesium and can be removed by boiling.
\n<\/section>\n
\nPermanent hardness is caused by dissolved chlorides and sulphates of calcium and magnesium (e.g., CaCl2, MgCl2, CaSO4, MgSO4) and cannot be removed by boiling. Water softening methods are required to remove permanent hardness.
\n<\/section>\n","protected":false},"excerpt":{"rendered":"

Temporary hardness in water is due to which one of the following of Calcium and Magnesium ? [amp_mcq option1=”Hydrogen carbonates” option2=”Carbonates” option3=”Chlorides” option4=”Sulphates” correct=”option1″] This question was previously asked in UPSC NDA-1 – 2017 Download PDFAttempt Online Temporary hardness in water is caused by the presence of dissolved bicarbonates (also known as hydrogen carbonates) of … <\/p>\n

Detailed SolutionTemporary hardness in water is due to which one of the following of 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":[1093],"tags":[1101,1096,1161],"class_list":["post-87444","post","type-post","status-publish","format-standard","hentry","category-upsc-nda-1","tag-1101","tag-chemistry","tag-hydrogen-and-its-compounds","no-featured-image-padding"],"yoast_head":"\nTemporary hardness in water is due to which one of the following of Ca<\/title>\n<meta name=\"description\" content=\"Temporary hardness in water is caused by the presence of dissolved bicarbonates (also known as hydrogen carbonates) of calcium and magnesium, such as Ca(HCO3)2 and Mg(HCO3)2. These can precipitate out as insoluble carbonates when the water is boiled, thereby removing the hardness. Temporary hardness is due to soluble bicarbonates of calcium and magnesium and can be removed by boiling.\" \/>\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\/temporary-hardness-in-water-is-due-to-which-one-of-the-following-of-ca\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Temporary hardness in water is due to which one of the following of Ca\" \/>\n<meta property=\"og:description\" content=\"Temporary hardness in water is caused by the presence of dissolved bicarbonates (also known as hydrogen carbonates) of calcium and magnesium, such as Ca(HCO3)2 and Mg(HCO3)2. These can precipitate out as insoluble carbonates when the water is boiled, thereby removing the hardness. Temporary hardness is due to soluble bicarbonates of calcium and magnesium and can be removed by boiling.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/temporary-hardness-in-water-is-due-to-which-one-of-the-following-of-ca\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T06:44:19+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":"Temporary hardness in water is due to which one of the following of Ca","description":"Temporary hardness in water is caused by the presence of dissolved bicarbonates (also known as hydrogen carbonates) of calcium and magnesium, such as Ca(HCO3)2 and Mg(HCO3)2. 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