When a solute is added to a solvent, the freezing point of the solution is a. higher than the freezing point of either substance alone. b. lower than the freezing point of either substance alone. c. the same as the freezing point of the solute. d. the same as the freezing point of the solvent?

It is lower than the freezing point of either substance alone. The freezing points of solutions are observed to be all lower than that of the solvent alone since there will be more particles present in the solution. The solute particles will block the crystallization of the solution and hence there will be a depression in the freezing point of the solution.

D-no effect on the rate