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In B.O.D. test, oxygen plays an importan...

In B.O.D. test, oxygen plays an important role to

A

Destroy inorganic matter

B

Destroy pollution

C

Destroy waste organic matter

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
C
BOD means number of miligrams of `O_2` required for decomposition of one litre of waste or waste by decomposing microorganisms (bacteria).
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ERRORLESS-ENVIRONMENTAL CHEMISTRY-NCERT BASED QUESTIONS (WATER POLLUTION)
  1. In B.O.D. test, oxygen plays an important role to

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  2. Brewery and sugar factory waster alters the quality of a water body by...

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  3. Measurement of rate of oxygen utillsation by a unit volume of water ov...

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  4. When huge amount of sewage is dumped into a river the BOD will:

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  5. A dental disease characterised by motting of teeth is due to presence ...

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  6. Fishes die by sewage because

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  7. The high amount of E, coli in water is the

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  8. Biological oxygen demand (BOD) is a measure of

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  9. Black-foot disease is caused due to groundwater contaminated with exce...

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  10. B.O.D. is connected with

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  11. Minimata disease first occurred in

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  12. Sewage containing organic waste should not be disposed in water bodies...

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  13. Limit of BOD prescribed by Central Pollution Control Board for the dis...

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  14. Thermal pollution of water bodies is due to discharge of:

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  15. Biological treatment of water pollution is done with the help of

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  16. Polluted water can be purified by using

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  17. Foul smell in the water of tanks, ponds etc. is due to

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  18. Minamata disease was caused due to the consumption of

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  19. Which of the following plant is used for the purification of water

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  20. Which of the following metal is a water pollutant and causes sterility...

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