Each Use: 1 Mark
(a) It is used in the manufacture of explosives such as TNT, trinitrocellulose, trinitroglycerin, picric acid, etc.
(b) It is used in the preparation of sulphuric acid (H2SO4) by the lead chamber process.
(c) It is used in the preparation of nitrates, perfumes, dyes drugs, paints, etc.