Assertion:Molecular mass of KCl calculated on the basis of colligative properties will be lower than the normal molecular mass.
Reason : Experimentally determined molar mass of always lower than the true value .

Options

A. If both assertion are reason are correct and reason is correct explanation for assertion.
B. If both assertion and reason are corrct but reason is not correct explanation for assertion.
C. If assertion is corrct but reason is incorrect.
D. If assertion and reason both are incrrect.

Answer

c

Explanation

Correct Reason. Experimentally determined molecular mass of any solute deprnds upon its behaviour in aqueous solution. It may remain unchanged, may undergo either association or dissociation in aqueous solution.