Give two important uses of washing

solution:
Two important uses of washing soda and baking soda are as follows-

(1) Washing soda-

(a) It is used in glass, soap, and paper industries.

(b) It is used to remove permanent hardness of water.

(2) Baking soda-

(a) It is used as baking powder. Baking powder is a mixture of baking soda and a mild acid known as tartaric acid. When it is heated or mixed in water, it releases $\mathrm{CO}_{2}$ gas that makes bread or cake fluffy.

(b)It is used in soda-acid fire extinguishers.