Give two important uses each of washing soda and baking soda.


(a) Uses of Washing Soda:

(i) It is used for removing permanent hardness of water.


(ii) It is used in the manufacture of sodium compounds such as borax.


(b) Uses of Baking Soda:


(i) 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 CO2 that makes cakes or bread fluffy.


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


16
1