Statement 1: The molecular weight of acetic acid determined by depression in freezing point method in benzene and water was found to be different.Statement 2: Water is polar and benzene is non-polar.

In benzene, acetic acid dimerizes but in water it does not. This is because benzene is non-polar, whereas water is polar. The number of particles become different in both thesolvents.Depression in freezing point is a colligative property, i.e. depends upon the number of particles in solution. Hence, molecular mass determined by depression in freezing point method comes out to be different.