Q40
In a BOD test, 1.0 ml of raw sewage was diluted to 100 ml and the dissolved oxygen concentration of diluted sample at the beginning was 6 ppm and it was 4 ppm at the end of 5 day incubation at 20°C. The BOD of raw sewage will be
A.
100 ppm
B.
200 ppm
AnswerC.
300 ppm
D.
400 ppm
Answer: Option B
Solution
Answer: Option B
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