Identify the incorrect statement from the following:

Explanation

Option A is incorrect because in a dilute solution, the mole fraction of the solute is not directly proportional to its molality; the relationship is more complex. Option B is true for ideal gases without reactions. Option C is correct since azeotropes obey Raoult’s law at all temperatures. Option D is also true because the relative volatility at the azeotropic point is exactly one.