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MHT CET Chemistry question

ChemistrySolutionsMHT CET

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

Answer: (B)

Solution

gives ; with , mol and g/mol; the

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Question ID VK-060701