AIIMS 2019 Chemistry Colligative Properties MCQ Question
Assertion : Reverse osmosis is used for desalination of sea water. Reason : Reverse osmosis occurs when a pressure larger than the osmotic pressure is applied to the solution.
If both assertion and reason are true and reason is correct explanation of assertion.
If both assertion and reason are true and reason is not correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.
Correct Answer
Detailed Explanation
Reverse osmosis is a process where water (H₂O) molecules move from a region of lower solute concentration to a region of higher solute concentration when pressure exceeds osmotic pressure, effectively allowing for the removal of salts and impurities from water. This phenomenon is crucial in desalination, as it enables the conversion of saline water into potable water by forcing H₂O through a semi-permeable membrane. Other options are not applicable as they do not provide relevant information or alternative answers related to the process of reverse osmosis. Understanding this concept is essential for grasping how water purification technologies function.
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