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JEE Main Chemistry question

ChemistrySolutionsJEE Main

An aqueous solution is 1.0 molal in KI. Which change will cause the vapour pressure of the solution to increase?

Answer: (D)

Solution

Adding any more solute (NaCl, or more KI) only increases the total solute particle concentration and lowers the vapour pressure further,

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Question ID VK-143317