Q. Pick out the wrong statement.

• (A) The mole fraction of solute is directly proportional to the molality of a 'dilute' solution
• (B) For a non-reacting binary mixture of ideal gases, the partial pressure distribution of both components is nonlinear in the case of steady state unimolal unidirectional diffusion
• (C) Azeotropes obey Raoult's law at all temperature
• (D) The relative volatility of a binary mixture at the Azeotropic composition is 1