Question 34

On dissolving 0.5 g of a non-volatile non-ionic solute to 39 g of benzene, its vapor pressure decreases from 650 mm Hg to 640 mm Hg. The depression of freezing point of benzene (in K) upon addition of the solute is ___________ .
(Given data: Molar mass and the molal freezing point depression constant of benzene are $$78 g mol^{-1} and 5.12 K kg mol^{-1}$$ respectively)

Correct Answer: e

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