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A sample of pond water conditioning 20mg...

A sample of pond water conditioning 20mg of organic matter requires 16ms of dissolved oxygen.(Pond water contains 10mg of organic matter per 2 liters).it's BOD is

A

4000ppm

B

400ppm

C

4ppm

D

40ppm

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The correct Answer is:
C
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PATHFINDER-ENVIRONMENTAL CHEMISTRY-QUESTION BANK
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  2. 100 mt of a sample of water requires 0.98mg of K2Cr2O7(M.W=294) in pre...

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  3. A sample of pond water conditioning 20mg of organic matter requires 16...

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  4. Which of the following reaction causes depletion of ozone layer in su...

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  5. COD of water sample is 8ppm the weight of acidified K2Cr2O7 required t...

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  8. Among the following how many are greenhouse gases ?

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  9. Which of the following gases are responsible for the formation of ph...

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  10. Regarding BOD5, which statements are incorrect ?

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  11. This question has Statement I and Statement II. Of the four choice giv...

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  14. This question has Statement I and Statement II. Of the four choice giv...

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  19. This question has Statement I and Statement II. Of the four choice giv...

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  20. Which of the following phenomenon are the outcome of ozone hole ?

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