Question

11. Give reason why common salt is sprinkled over ice-laden roofs and paths in the
mountainous areas?
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Answer 1

Answer:

When impurities are added to ice it's melting point increases

Explanation:

if the melting point is low the ice will melt at a lower temperature and the water will over flow .The melting point increases because the salt molecules between the water molecules hold the water molecules together .Thus the bonds become harder to break.