Solution:
For equimolar solutions, large the van't Hoff factor, larger the decrease in freezing point and hence minimum will be the freezing point.
The van't Hoff factor of solutes A, Band C in aqueous solutions are 0.8, 1.6 and 1.2, respectively. The freezing point of equimolar solutions follow the order
For equimolar solutions, large the van't Hoff factor, larger the decrease in freezing point and hence minimum will be the freezing point.