depression in freezing point

The depressions in freezing point for 1 M urea, 1 M glucose and 1M NaCl are in the ration :

Assertion : Depression of freezing point is a colligative property Reason : The depression of freezing point for a solution is directly proportional to the molality of the solution.

The depression of freezing point is directly proportional to

In the depression of freezing point experiment, it is found that the: