{"id":85745,"date":"2025-06-01T03:26:30","date_gmt":"2025-06-01T03:26:30","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=85745"},"modified":"2025-06-01T03:26:30","modified_gmt":"2025-06-01T03:26:30","slug":"desalination-of-seawater-is-done-by-using-reverse-osmosis-the-pressur","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/desalination-of-seawater-is-done-by-using-reverse-osmosis-the-pressur\/","title":{"rendered":"Desalination of seawater is done by using reverse osmosis. The pressur"},"content":{"rendered":"

Desalination of seawater is done by using reverse osmosis. The pressure applied to the solution is<\/p>\n

[amp_mcq option1=”larger than osmotic pressure” option2=”smaller than osmotic pressure” option3=”equal to osmotic pressure” option4=”equal to atmospheric pressure” correct=”option1″]<\/p>\n

\n
\n
This question was previously asked in<\/div>\n
UPSC CDS-2 – 2017<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
\nThe correct answer is larger than osmotic pressure.
\n<\/section>\n
\nOsmosis is the spontaneous movement of solvent molecules through a semipermeable membrane from a region of lower solute concentration to a region of higher solute concentration. Osmotic pressure is the pressure that would have to be applied to a pure solvent to prevent it from passing into a given solution by osmosis, often used to express the concentration of the solution. Reverse osmosis is a process where a solvent is forced through a semipermeable membrane from a region of high solute concentration to a region of low solute concentration by applying a pressure greater than the osmotic pressure. This is the principle used in desalination to separate pure water from seawater.
\n<\/section>\n
\nIn desalination using reverse osmosis, pressure is applied to the seawater (higher solute concentration) side of the membrane. This pressure overcomes the natural osmotic pressure and forces water molecules (solvent) through the membrane, leaving the salts behind. The membrane allows the passage of water molecules but not the dissolved salts.
\n<\/section>\n","protected":false},"excerpt":{"rendered":"

Desalination of seawater is done by using reverse osmosis. The pressure applied to the solution is [amp_mcq option1=”larger than osmotic pressure” option2=”smaller than osmotic pressure” option3=”equal to osmotic pressure” option4=”equal to atmospheric pressure” correct=”option1″] This question was previously asked in UPSC CDS-2 – 2017 Download PDFAttempt Online The correct answer is larger than osmotic pressure. … <\/p>\n

Detailed SolutionDesalination of seawater is done by using reverse osmosis. The pressur<\/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":[1088],"tags":[1101,1096,1155],"class_list":["post-85745","post","type-post","status-publish","format-standard","hentry","category-upsc-cds-2","tag-1101","tag-chemistry","tag-physical-and-chemical-changes-solution","no-featured-image-padding"],"yoast_head":"\nDesalination of seawater is done by using reverse osmosis. The pressur<\/title>\n<meta name=\"description\" content=\"The correct answer is larger than osmotic pressure. Osmosis is the spontaneous movement of solvent molecules through a semipermeable membrane from a region of lower solute concentration to a region of higher solute concentration. Osmotic pressure is the pressure that would have to be applied to a pure solvent to prevent it from passing into a given solution by osmosis, often used to express the concentration of the solution. Reverse osmosis is a process where a solvent is forced through a semipermeable membrane from a region of high solute concentration to a region of low solute concentration by applying a pressure greater than the osmotic pressure. This is the principle used in desalination to separate pure water from seawater.\" \/>\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\/desalination-of-seawater-is-done-by-using-reverse-osmosis-the-pressur\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Desalination of seawater is done by using reverse osmosis. 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