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MHT CET Chemistry question

ChemistrySolutionsMHT CET

The vapour pressure of water at 20 C is 17.54 mm. When 20 g of a non-ionic, substance is dissolved in 100 g of water, the vapour pressure is lowered by 0.30 mm. What is the molecular weight of the substance?

Answer: (A)

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Question ID VK-061071