Assertion :Lowering of vapour pressure is not dependent on the number of species present in the solution. Reason: Lowering of vapour pressure and relative lowering of vapour pressure are colligative properties.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is D Both Assertion and Reason are incorrect
Colligative properties are properties of solutions that depend on the ratio of the number of solute particles to the number of solvent molecules in a solution, and not on the nature of the chemical species present. Relative lowering of vapor pressure is a colligative property.

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