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MHT CET Chemistry question

ChemistrySolutionsMHT CET

The vapour pressure of benzene at 80 C is lowered by 10 mm on dissolving 2 g of a non-volatile substance in 78 g of benzene. The vapour pressure of pure benzene at 80 C is 750 mm. The molecular mass of the substance will be

Answer: (B)

Solution

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Question ID VK-061076