In countries where the temperature falls below 273K, salt is always sprinkled on the icy road in order to
-
lower the melting point of the ice
- increase the density of the ice
- make the ice impure
- raise the melting point of the ice
The correct answer is: A
Explanation
The presence of impurities in a substance lowers the melting point. Salt is added on icy roads to cause the ice to melt on time.
There is an explanation video available .