Sodium chloride is used to clear snow from roads. Explain.

The questions given below consist of an Assertion and Reason. Use the following key to choose of the appropriate answer. If both assertion and reason are CORRECT and reason if the CORRECT explanations of the assertion. If both assertion and reason are CORRECT but, reason is NOT THE CORRECT explanation of the assertion. If assertion is CORRECT explanation of the assertion. If both assertion and reason are INCORRECT. Assertion: Sodium chloride is used to clear snow on the roads. Reason: sodium chloride depresses the freezing point of water.

CaCl_2 is used to clear snow in cold countries. Explain.

Sodium chloride solution freezes at lower temparature than water but boils at higher temparature than water . Explain.

During the eletrolysis of molten sodium chloride, the time required to produce 0.10 mol of chlorine gas using a current of 3 ampere is

A person walking on a horizontal road with a load on his head does no work.Explain.