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5 L aqueous solution is kept in the pres...

5 L aqueous solution is kept in the presence of oxygen and suitable microorganisms for five days at `20^circ C`. If the `O_2` consumed is `0. 2 g`, the `BOD` value of the sample is. : `4`ppm, `0.4 mg L^(-1)`, `40` ppm, `20 mg L^(-1)`

A

4.ppm

B

0.4 mg L^(-1)'

C

40 ppm'

D

20 mg L^(-1)'

Text Solution

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The correct Answer is:
C
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