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A sample of pond water containing 20mg o...

A sample of pond water containing 20mg of organic matter requires 16 mg of dissolved oxygen. (Pond water contains 10mg of organic matter per 2 litres). It's BOD is

A

4000 ppm

B

400 ppm

C

4 ppm

D

40 ppm

Text Solution

Verified by Experts

The correct Answer is:
C
`O.D = (Wt of O_2)/("Wt. of sample of water") xx 10^6`
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