Q23
If a 2% solution of sewage sample is incubated for 5 days at 20°C and the dissolved oxygen depletion was found to be 8 mg/l. The BOD of the sewage is
A.
100 mg/l
B.
200 mg/l
C.
300 mg/l
D.
400 mg/l
AnswerAnswer: Option D
Solution
Answer: Option D
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