{"id":89622,"date":"2025-06-01T10:09:17","date_gmt":"2025-06-01T10:09:17","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=89622"},"modified":"2025-06-01T10:09:17","modified_gmt":"2025-06-01T10:09:17","slug":"arsenic-present-in-groundwater-can-be-partially-removed","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/arsenic-present-in-groundwater-can-be-partially-removed\/","title":{"rendered":"Arsenic present in groundwater can be partially removed"},"content":{"rendered":"

Arsenic present in groundwater can be partially removed<\/p>\n

[amp_mcq option1=”along with removal of iron by precipitation\/coagulation method if iron is also present in the water” option2=”on boiling even if iron is absent in the water” option3=”on UV-treatment” option4=”on filtration even if iron is absent in the water” correct=”option1″]<\/p>\n

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\n
This question was previously asked in<\/div>\n
UPSC CAPF – 2013<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
\nThe correct option is A. Arsenic present in groundwater can be partially removed along with removal of iron by precipitation\/coagulation method if iron is also present in the water.
\n<\/section>\n
\nOne effective method for removing arsenic from water is co-precipitation or adsorption onto iron oxyhydroxides. When iron is present in the water, or is added as a coagulant (like ferric chloride), iron precipitates are formed. Arsenic species (arsenite and arsenate) adsorb onto the surface of these precipitates or are incorporated into the growing iron particles. Subsequent sedimentation and filtration of these iron precipitates effectively remove arsenic from the water.
\n<\/section>\n
\nOther methods for arsenic removal include adsorption onto activated alumina, iron oxides, or activated carbon, ion exchange, and membrane filtration (reverse osmosis). Boiling (B), UV treatment (C), or simple filtration without precipitation (D) are not effective methods for removing dissolved arsenic from water.
\n<\/section>\n","protected":false},"excerpt":{"rendered":"

Arsenic present in groundwater can be partially removed [amp_mcq option1=”along with removal of iron by precipitation\/coagulation method if iron is also present in the water” option2=”on boiling even if iron is absent in the water” option3=”on UV-treatment” option4=”on filtration even if iron is absent in the water” correct=”option1″] This question was previously asked in UPSC … <\/p>\n

Detailed SolutionArsenic present in groundwater can be partially removed<\/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":[1467,1096,1239],"class_list":["post-89622","post","type-post","status-publish","format-standard","hentry","category-upsc-capf","tag-1467","tag-chemistry","tag-inorganic-chemistry","no-featured-image-padding"],"yoast_head":"\nArsenic present in groundwater can be partially removed<\/title>\n<meta name=\"description\" content=\"The correct option is A. Arsenic present in groundwater can be partially removed along with removal of iron by precipitation\/coagulation method if iron is also present in the water. One effective method for removing arsenic from water is co-precipitation or adsorption onto iron oxyhydroxides. When iron is present in the water, or is added as a coagulant (like ferric chloride), iron precipitates are formed. Arsenic species (arsenite and arsenate) adsorb onto the surface of these precipitates or are incorporated into the growing iron particles. Subsequent sedimentation and filtration of these iron precipitates effectively remove arsenic from the water.\" \/>\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\/arsenic-present-in-groundwater-can-be-partially-removed\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Arsenic present in groundwater can be partially removed\" \/>\n<meta property=\"og:description\" content=\"The correct option is A. Arsenic present in groundwater can be partially removed along with removal of iron by precipitation\/coagulation method if iron is also present in the water. One effective method for removing arsenic from water is co-precipitation or adsorption onto iron oxyhydroxides. When iron is present in the water, or is added as a coagulant (like ferric chloride), iron precipitates are formed. Arsenic species (arsenite and arsenate) adsorb onto the surface of these precipitates or are incorporated into the growing iron particles. Subsequent sedimentation and filtration of these iron precipitates effectively remove arsenic from the water.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/arsenic-present-in-groundwater-can-be-partially-removed\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T10:09:17+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":"Arsenic present in groundwater can be partially removed","description":"The correct option is A. Arsenic present in groundwater can be partially removed along with removal of iron by precipitation\/coagulation method if iron is also present in the water. One effective method for removing arsenic from water is co-precipitation or adsorption onto iron oxyhydroxides. When iron is present in the water, or is added as a coagulant (like ferric chloride), iron precipitates are formed. Arsenic species (arsenite and arsenate) adsorb onto the surface of these precipitates or are incorporated into the growing iron particles. Subsequent sedimentation and filtration of these iron precipitates effectively remove arsenic from the water.","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\/arsenic-present-in-groundwater-can-be-partially-removed\/","og_locale":"en_US","og_type":"article","og_title":"Arsenic present in groundwater can be partially removed","og_description":"The correct option is A. Arsenic present in groundwater can be partially removed along with removal of iron by precipitation\/coagulation method if iron is also present in the water. One effective method for removing arsenic from water is co-precipitation or adsorption onto iron oxyhydroxides. When iron is present in the water, or is added as a coagulant (like ferric chloride), iron precipitates are formed. Arsenic species (arsenite and arsenate) adsorb onto the surface of these precipitates or are incorporated into the growing iron particles. Subsequent sedimentation and filtration of these iron precipitates effectively remove arsenic from the water.","og_url":"https:\/\/exam.pscnotes.com\/mcq\/arsenic-present-in-groundwater-can-be-partially-removed\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2025-06-01T10:09:17+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\/arsenic-present-in-groundwater-can-be-partially-removed\/","url":"https:\/\/exam.pscnotes.com\/mcq\/arsenic-present-in-groundwater-can-be-partially-removed\/","name":"Arsenic present in groundwater can be partially removed","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2025-06-01T10:09:17+00:00","dateModified":"2025-06-01T10:09:17+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"description":"The correct option is A. Arsenic present in groundwater can be partially removed along with removal of iron by precipitation\/coagulation method if iron is also present in the water. One effective method for removing arsenic from water is co-precipitation or adsorption onto iron oxyhydroxides. When iron is present in the water, or is added as a coagulant (like ferric chloride), iron precipitates are formed. Arsenic species (arsenite and arsenate) adsorb onto the surface of these precipitates or are incorporated into the growing iron particles. 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