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KCET 2021 Chemistry Solved Paper

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Question : 27

Total: 60

The vapour pressure of pure liquids A and B are 450 and 700‌mm of Hg at 350K respectively. If the total vapour pressure of the mixture is 600‌mm of Hg, the composition of the mixture in the solution is

χA=0.4,χB=0.6
χA=0.6,χB=0.4
χA=03,χB=0.7
χA=0.7,χB=03

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