Discussion :: Chemical Process
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Presence of carbonaceous matter in the sewage
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A.
causes reduction in its dissolved oxygen content thereby endangering the life of aquatic creatures.
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B.
reduces sulphate ions to sulphides causing obnoxious smell.
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C.
increases the quantity of chlorine used for its purification.
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D.
all (a), (b) and (c).
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Answer : Option D
Explanation :
No answer description available for this question.
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