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Given below are two statements: Statement (I): Molal depression constant Kf is given by M1RTf/ΔSfus, where symbols have their usual meaning. Statement (II): Kf for benzene is less than the Kf for water. In the light of the above statements, choose the most appropriate Answer from the options given below :

1. Statement I is correct but Statement II is incorrect
2. Both Statement I and Statement II are correct
3. Statement I is incorrect but Statement II is correct
4. Both Statement I and Statement II are incorrect

Correct answer: Statement I is correct but Statement II is incorrect

Solution

Statement I accurately describes the relationship involving the molal depression constant Kf, while Statement II is incorrect because Kf for benzene is actually greater than that for water, indicating a stronger freezing point depression effect for benzene.

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