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JEE Main Chemistry question

ChemistrySolutionsJEE Main

The vapour pressure of benzene at is 1020 torr. A solution of 5 g of a solute in 58.5 g benzene has vapour pressure 990 torr. The molecular weight of the solute is:

Answer: (D)

Solution

Relative lowering . Moles benzene . Solving

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Question ID VK-143384