Assertion : A non volatile solute is mixed in a solution then elevation in boiling point and depression in freezing point both are 2 ~K . Reason : Elevation in boiling point and depression in freezing point both depend on melting point of non-volatile solute.

Step-by-step solution

Elevation in boiling point ( T_b )=K_b m Depression in freezing point ( T_f )=K_f m . Elevation in boiling point and depression in freezing point are colligative properties i.e., they depend only on the number of particles of the solute. Value of K_b and K_f are different, so T_b and T_f are also different.