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Assertion : Addition of a nonvolatile so...

Assertion : Addition of a nonvolatile solute to a volatile solvent increases the boiling point.
Reason : Addition of nonvolatile solute results in lowering of vapour pressure.

A

If both assertion and reason are true, and reason is the true explanation of the assertion.

B

If both assertion and reason are true, but reason is not the true explanation of the assertion.

C

If assertion is true, but reason is false.

D

If both assertion and reason are false.

Text Solution

Verified by Experts

Lowering of vapour pressure increases the boiling point as more heat is required to make vapour pressure equal to atmospheric pressure. Hence, R is the correct explanation of A.
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