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« Back to Previous Page
A. 300 kg
B. 75 kg
C. 30 kg
D. 7.5 kg
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C. 30 kg |
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C. 30 kg |
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