Q 15. Give two important uses of washing soda and baking soda.
Uses of Washing Soda:
(i) It is used for removing the permanent hardness of the water.
(ii) It is used in glass, soap, and paper industries.
Uses of Baking Soda:
(i) It is used in soda-acid fire extinguishers.
(ii) It is used in making baking powder. Baking powder is a mixture of baking soda and a mild edible acid called tartaric acid. When baking powder is heated or mixed in water, it releases that makes cakes or bread fluffy.