{"id":90811,"date":"2025-06-01T10:38:06","date_gmt":"2025-06-01T10:38:06","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=90811"},"modified":"2025-06-01T10:38:06","modified_gmt":"2025-06-01T10:38:06","slug":"pure-demineralized-water-free-from-all-soluble-mineral-salts-is-obta","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/pure-demineralized-water-free-from-all-soluble-mineral-salts-is-obta\/","title":{"rendered":"Pure, demineralized water, free from all soluble mineral salts is obta"},"content":{"rendered":"

Pure, demineralized water, free from all soluble mineral salts is obtained by which of the following method?<\/p>\n

[amp_mcq option1=”Passing water through microfiltration membrane” option2=”Calgon\u2019s method” option3=”Passing water through a cation exchange and an anion exchange resin bed” option4=”By boiling” correct=”option3″]<\/p>\n

\n
\n
This question was previously asked in<\/div>\n
UPSC CAPF – 2023<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
\nPure, demineralized water, free from all soluble mineral salts, is obtained by passing water through a cation exchange and an anion exchange resin bed. This process removes dissolved ions (cations and anions) that constitute mineral salts.
\n<\/section>\n
\nDemineralization or deionization is the process of removing mineral salts from water. Ion exchange is a highly effective method for achieving this. Cation exchange resins replace positive ions (like Ca\u00b2\u207a, Mg\u00b2\u207a, Na\u207a) with H\u207a ions, and anion exchange resins replace negative ions (like Cl\u207b, SO\u2084\u00b2\u207b, HCO\u2083\u207b) with OH\u207b ions. The H\u207a and OH\u207b ions then combine to form water (H\u2082O).
\n<\/section>\n
\nOther options are not suitable for obtaining pure, demineralized water. Microfiltration removes suspended solids but not dissolved salts. Calgon’s method softens water by sequestering hardness ions but doesn’t remove all salts. Boiling removes temporary hardness and dissolved gases but leaves behind permanent hardness salts and other dissolved minerals. Distillation is another method to obtain pure water by separating it from dissolved substances through evaporation and condensation. Reverse osmosis can also produce demineralized water.
\n<\/section>\n","protected":false},"excerpt":{"rendered":"

Pure, demineralized water, free from all soluble mineral salts is obtained by which of the following method? [amp_mcq option1=”Passing water through microfiltration membrane” option2=”Calgon\u2019s method” option3=”Passing water through a cation exchange and an anion exchange resin bed” option4=”By boiling” correct=”option3″] This question was previously asked in UPSC CAPF – 2023 Download PDFAttempt Online Pure, demineralized … <\/p>\n

Detailed SolutionPure, demineralized water, free from all soluble mineral salts is obta<\/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":[1085],"tags":[1105,1096,1161],"class_list":["post-90811","post","type-post","status-publish","format-standard","hentry","category-upsc-capf","tag-1105","tag-chemistry","tag-hydrogen-and-its-compounds","no-featured-image-padding"],"yoast_head":"\nPure, demineralized water, free from all soluble mineral salts is obta<\/title>\n<meta name=\"description\" content=\"Pure, demineralized water, free from all soluble mineral salts, is obtained by passing water through a cation exchange and an anion exchange resin bed. This process removes dissolved ions (cations and anions) that constitute mineral salts. Demineralization or deionization is the process of removing mineral salts from water. Ion exchange is a highly effective method for achieving this. Cation exchange resins replace positive ions (like Ca\u00b2\u207a, Mg\u00b2\u207a, Na\u207a) with H\u207a ions, and anion exchange resins replace negative ions (like Cl\u207b, SO\u2084\u00b2\u207b, HCO\u2083\u207b) with OH\u207b ions. The H\u207a and OH\u207b ions then combine to form water (H\u2082O).\" \/>\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\/pure-demineralized-water-free-from-all-soluble-mineral-salts-is-obta\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Pure, demineralized water, free from all soluble mineral salts is obta\" \/>\n<meta property=\"og:description\" content=\"Pure, demineralized water, free from all soluble mineral salts, is obtained by passing water through a cation exchange and an anion exchange resin bed. This process removes dissolved ions (cations and anions) that constitute mineral salts. Demineralization or deionization is the process of removing mineral salts from water. Ion exchange is a highly effective method for achieving this. Cation exchange resins replace positive ions (like Ca\u00b2\u207a, Mg\u00b2\u207a, Na\u207a) with H\u207a ions, and anion exchange resins replace negative ions (like Cl\u207b, SO\u2084\u00b2\u207b, HCO\u2083\u207b) with OH\u207b ions. The H\u207a and OH\u207b ions then combine to form water (H\u2082O).\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/pure-demineralized-water-free-from-all-soluble-mineral-salts-is-obta\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T10:38:06+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":"Pure, demineralized water, free from all soluble mineral salts is obta","description":"Pure, demineralized water, free from all soluble mineral salts, is obtained by passing water through a cation exchange and an anion exchange resin bed. This process removes dissolved ions (cations and anions) that constitute mineral salts. Demineralization or deionization is the process of removing mineral salts from water. Ion exchange is a highly effective method for achieving this. Cation exchange resins replace positive ions (like Ca\u00b2\u207a, Mg\u00b2\u207a, Na\u207a) with H\u207a ions, and anion exchange resins replace negative ions (like Cl\u207b, SO\u2084\u00b2\u207b, HCO\u2083\u207b) with OH\u207b ions. 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