Question

give two important use of washing soda and baking soda.

Answer 1

a) Two important uses of washing soda
   (i) It is used in the manufacture of soap and glass.
   (ii) It is used to remove the permanent hardness of water.
(b) Two important uses of baking soda
   (i) It is used for making baking powder.
   (ii) It is used in soda- fire extinguishers.

Answer 2

Washing soda

1. it is use in the manufacturing of glass, soap paper and other sodium compounds like borax etc.

2. it is use in softening of the hard water

Baking soda

1. it is use as antacids to neutralise excess of acidity in our stomach

2. it is an ingredient of baking powder which contain NaHCO3 & tartaric acid.