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At constant temperature, the osmotic pressure of a solution is: This question has multiple correct options

1. directly proportional to the concentration
2. inversely proportional to the molar mass of solute
3. directly proportional to the square of the concentration
4. directly proportional to the square root of the concentration

Correct answer: directly proportional to the concentration

Solution

For dilute solutions, osmotic pressure follows π = CRT, where C is concentration and T is constant. Therefore, at constant temperature, π is directly proportional to concentration.

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