Question

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Answer 1

Answer:

Ans 1. The reason why salt is spread on pavement snow during winter in cold countries is because this practice lowers the freezing point of the water that forms the ice which makes the ice melt and prevents snow to collect on the pavements.

Ans 2. Reason for purification of common salt obtained from salt pans. Common salt is obtained in huge quantities through a process called evaporation. ... In order to make the salt fit for domestic purpose, the salt obtained from salt pans are purified many times.neutralisation reaction is used to get salts.

Ans 3. Neutralisation reaction is used to get salt because acid and base react with each other to form water and salt. This process is also known as neutralisation reaction.

Explanation:

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