A. treatment of polluted water
B. preservation of food
C. separation of soap from glycerol
D. manufacture of chlorine
E. manufacture of caustic soda
Correct Answer:
Option A – treatment of polluted water
A. treatment of polluted water
B. preservation of food
C. separation of soap from glycerol
D. manufacture of chlorine
E. manufacture of caustic soda
Correct Answer:
Option A – treatment of polluted water
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