Question

Sprinkling of salt helps in clearing the snow-covered roads in hills. The phenomenon involved in the process is :

• A. lowering in vapour pressure of snow
• B. depression in freezing point of snow
• C. increase in freezing point of snow
• D. melting of ice due to increase in temperature by putting salt

Answer 1

The correct option is B depression in freezing point of snow

When salt is spread over snow covered roads, snow starts melting from the surface because of the depression in freezing point of water and it helps in clearing the roads.