Question

In a 0.2 molal aqueous solution of a weak acid HX, the degree of ionisation is 0.3. Taking Kf for water as 1.85 K kg mol−1 , the freezing point of the solution will be nearest to

A) −0.360 °C

B) −0.260 °C

C) +0.480 °C

D) −0.418 °C

Answer 1

Correct answe is d )  −0.418 °C