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Vapour pressure of water

Give me answer of this question. 5cm3 of acetone is added to 100cm3 of water, the vapour pressure of water over the solution: (a) It will be equal to the vapour pressure of pure water (b) It will be less than the vapour pressure of pure water (c) It will be greater than the vapour pressure of pure water (d) It will be very large

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