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Question
The vapour pressure of benzene at 30°C is 121.8 mm. By adding 15 g of non-volatile solute in 250 g of benzene, its vapour pressure is decreased to 120.2 mm. The molecular weight of solute is:
Options
156.6 g
267.4 g
356.3 g
467.4 g
MCQ
Solution
356.3 g
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