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In the manufacture of bromine from sea water, the mother liquor containing bromides is treated with

1. (a) Carbon dioxide
2. (b) Chlorine
3. (c) Iodine
4. (d) Sulphur dioxide

Correct answer: (b) Chlorine

Solution

Chlorine is used to oxidize bromide ions in the mother liquor to bromine during its extraction from seawater.

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