If 2% solution of a sewage sample is incubated for 5 days at 20°C and depletion of oxygen was found to be 5 ppm, B.O.D. of the sewage is____________________? - McqsHome

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If 2% solution of a sewage sample is incubated for 5 days at 20°C and depletion of oxygen was found to be 5 ppm, B.O.D. of the sewage is____________________?

(A) 200 ppm

(B) 225 ppm

(C) 250 ppm

(D) None of these

Submitted By :Ali Uppal

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