If the elevation in boiling point of a solution of 10 gm of solute (mol. Wt. = 100) in 100 gm of water is `DeltaT_(b)`, the ebullioscopic constant of water is

Options

A. Molecular mass of X is less than molecular mass of Y
B. Y is undergoing dissociation while X undergoes no charge
C. X is undergoing dissociation in water
D. molecular mass of X is greater than molecular mass of Y.

Answer

C

Explanation

Hint: Van.t Hoff factor, incrcases with dissociation. So boiling point incrcases.