Assertion (A): Sodium chloride used to clear snow on the roads.
Reason (R ): Sodium chloride depresses the freezing point of water.

Options

A. If both `(A)` and `(R )` are correct, and `(R )` is the correct explanation of `(A)`.
B. If both `(A)` and `(R )` are correct, but `(R )` is not the correct explanation of `(A)`.
C. If `(A)` is correct, but `(R )` is incorrect.
D. If `(A)` is correct, but `(R )` is correct.

Answer

A

Explanation

According to colligative property addition of non-volatile solute to volatile solvent, the freezing point of solution decreases.