Question

2. Why is it called a basic salt? Give its any one use​

Answer 1

Washing soda is basic in nature because, when dissolved in water, it dissociates into the weak acid (carbonic acid), and the strong alkali (sodium hydroxide).

When sodium carbonate is added in any solution, it readily reacts with metals such as aluminum with the release of hydrogen gas.

It is used as a cleaning agent for domestic purposes in paper and glass industry.