If the depletion of oxygen is found to be 2 mg/l after incubating 3 ml – McqOptions

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1.	If the depletion of oxygen is found to be 2 mg/l after incubating 3 ml of sewage diluted to 300 ml at 20°C for 5 days, then the BOD5 of the sewage is
A.	500 mg/l
B.	200 mg/l
C.	550 mg/l
D.	300 mg/l
Answer» C. 550 mg/l

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