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For a dilute solution, Raoult’s law states that :

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The relative lowering of vapour pressure is equal to the mole fraction of solute.

The relative lowering of vapour pressure is equal to the mole fraction of solvent

The relative lowering of vapour pressure is proportional to the amount of solute in solution

The vapour pressure of the solution is equal to the mole fraction of solvent

answer is A.

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Detailed Solution

For a dilute solution, Raoult's law states that:

The relative lowering of vapour pressure is equal to the mole fraction of solute.

Mathematically, it can be represented as $\frac{P^{o} - P}{P^{o}} = X_{A}$

Here, P^o is the pressure of pure solvent, P is the partial pressure of solution and X_A is the mole fraction of solute.

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