Mention two uses of the salts given below:
(a) Sodium chloride.
(b) Sodium bicarbonate
(c) Calcium sulphate hemihydrate.

Explanation

`{:(,"Chemical name and formula",,"Uses"),((a),"Sodium chloride, NaCI",(i),"Food additive"),(,,(ii),"Preservative for pickles"),(,,(iii),"Manufacture of chlorine and NaOH"),((b),"Sodium bicarbonate,"NaHCO_(3),(i),"Antacid tablets"),(,,(ii),"Leavening aagent for cakes."),(,,(iii),"Fire extinguisher"),((c),"Calcium sulphate hemihydrate,",,"Making of statues, setting of broken bones"),(,CaSO_(4)*(1)/(2)H_(2)O,,):}`