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MHT CET Chemistry question

ChemistrySolutionsMHT CET

A solution is obtained by dissolving 12 g of urea (molecular mass 60) in a litre of water. Another solution is obtained by dissolving 68.4 g of cane sugar (molecular mass 342) in a litre of water at the same temperature. The lowering of vapour pressure in the first solution is

Answer: (A)

Solution

Urea: mol and sugar: mol in the same amount of water, so the mole fractions and hence

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Question ID VK-061067