NEET 2001 Chemistry question

Pure water can be obtain from sea water by

(1)Centrifugation
(2)Plasmolysis
(3)Reverse osmosisCorrect
(4)Sedimentation

Answer: (3)

Solution

In reverse osmosis a pressure greater than the osmotic pressure of the solution is applied on the sea-water side of a semipermeable membrane, forcing pure water through the membrane to the other side; this

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Question ID VK-088811