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Describe two important uses of each of t...

Describe two important uses of each of the following:
(a) casutic soda, (b) sodium carbonate and ( c) quicklime.

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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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