The use of anhydrous common salts, e.g., `NaCl or CaCl_2` is to clear snow on the roads. This causes

Options

A. a lowering in f.pt. of water
B. a lowering in m.pt. of ice
C. melting of ice at the atmospheric temperature
D. all of the above.

Answer

D

Explanation

Addition of salt lowers the freezing point of water and thus, snow melts.