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Describe two important uses of each of the following : (i) caustic soda , (ii) sodium carbonate (iii) quick lime . |
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Answer» Solution :1. Caustic soda . (i) It is used in the manufacture of soap , paper , artificial silk , etc. and in petroleum REFINING and purification of bauxite . (ii) It is used in the textile industries for mercerising COTTON fabrics. 2 . Sodium carbonate , (i) It is used in water SOFTENING , laundaring and cleaning . (ii) It is used in the manufacture of glass, soap , borax , etc. and in paper , paints and textile industries . 3. Quick lime . (i) It is used in the manufacture of sodium carbonate from caustic soda . (ii) It is employed in the purification of sugar and in the manufacture of DYESTUFFS. |
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