Solutions Question 119

Question: Which of the following is incorrect [J & K 2005]

Options:

A) Relative lowering of vapour pressure is independent

B) The vapour pressure is a colligative property

C) Vapour pressure of a solution is lower than the vapour pressure of the solvent

D) The relative lowering of vapour pressure is directly propertional to the original pressure

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Answer:

Correct Answer: D

Solution:

According to Raoult’s law, the relative lowering in vapour pressure of a dilute solution is equal to mole fraction of the solute present in the solution.



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