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Raoult's Law

State True or...

Question

State True or False.
Lowering of vapour pressure is proportional to the mole fraction of the solute.

A

True

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B

False

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Solution

The correct option is A True
The given statement is true.
Lowering of vapour pressure is proportional to the mole fraction of the solute.
$\frac{Δ P}{P} = X$
Here, $Δ P$ is the lowering of the vapour pressure, P is the vapour pressure of pure solvent and X is the mole fraction of solute.

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