JAMB - Chemistry (2008 - No. 2)
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
הֶסבֵּר
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.