Foul odour and bad taste of water is removed by treating with__________________?
Correct answer: D. Activated carbon
- A. Alum
- B. Bleaching powder
- C. Copper sulphate
- D. Activated carbon
Explanation
Activated carbon adsorbs many dissolved organic compounds responsible for unpleasant taste and odour. Alum mainly removes suspended and colloidal matter, while bleaching powder is primarily a disinfectant.
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