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The vapour pressure of water at room tem...

The vapour pressure of water at room temperature is 30 mm of Hg. If the mole fraction of water in a solution of non volatile solute is 0.9, the vapour pressure of the solution will be :-

A

30mm of Hg

B

24 mm of Hg

C

21 mm of Hg

D

27 mm of Hg

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The correct Answer is:
D
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