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  1. A city supply of 15000 cubic metres of water per day is treated with a chlorine dosage of 0.5 ppm. For this purpose, the requirement of 25% bleaching powder per day would be

    2. A.
    300 kg
    B.
    75 kg
    C.
    30 kg
    D.
    7.5 kg

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    Answer : Option C

    Explanation :

    No answer description available for this question. Let us discuss.

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