Question

If the depletion of oxygen is found to be 2.5 mg/litre after incubating 2.5 ml of sewage diluted to 250 ml for 5 days at 20c,
b.O.D. Of the sewage is

Answer 1

If the depletion of oxygen is found to be 2.5 mg/litre after incubating 2.5 ml of sewage diluted to 250 ml for 5 days at 20°C, B.O.D. of the sewage is

A. 50 mg/l

B. 100 mg/l

C. 150 mg/l

D. 200 mg/l

E. 250 mg/l.

Answer: Option E

Explanation:

No answer description available for this question.