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The amount of oxygen required to oxidise...

The amount of oxygen required to oxidise organic substance present in water is called

A

DO

B

COD

C

BOD

D

TLV

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The correct Answer is:
B
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The amount of oxygen required to oxidies organic substance present in water is called

The amount of oxygen used by the suitable microorganisms present in water during five days at 20^(@)C is called as BOD. For pure water BOD is about 1 ppm fairly pure water 3 ppm and doubtful purity 5 ppm the municipal sewage has BOD values 100-4000 ppm. BOD= Number of moles of O_2 required / Number of liters of water sample If water is polluted its BOD value is

The amount of oxygen used by the suitable microorganisms present in water during five days at 20^(@)C is called as BOD. For pure water BOD is about 1 ppm fairly pure water 3 ppm and doubtful purity 5 ppm the municipal sewage has BOD values 100-4000 ppm. BOD= Number of moles of O_2 required / Number of liters of water sample The BOD value of municipal sewage is

The amount of oxygen used by the suitable microorganisms present in water during five days at 20^(@)C is called as BOD. For pure water BOD is about 1 ppm fairly pure water 3 ppm and doubtful purity 5 ppm the municipal sewage has BOD values 100-4000 ppm. BOD= Number of moles of O_2 required / Number of liters of water sample BOD is normally cxpressed for a time period of

The amount of oxygen used by micro organisms present in water for five days at 20^@C is called

The amount of oxygen used by micro organisms present in water for five days at 20^@C is called

Organic impurities present in waste water

AAKASH SERIES-ENVIRONMENTAL CHEMISTRY-OBJECTIVE EXERCISE - 1 (Definition of terms- Introduction)
  1. (A): Smaller particles (Size < 5 microns) cause fibrosis of the lung l...

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  2. Among the following which is a contaminent

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  3. Which of the following is contaminant responsible for Bhopal gas trage...

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  4. A substance which is not present in nature but added to atmoshphere du...

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  5. Identification of a pollutant as organic, inorgamic (or) organometalli...

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  6. The medium which reacts wi lh pollutant is called

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  7. The sink for dead plants and animals is

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  8. Which of the following can act as sink for CO2 and SO2

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  9. Water is said to be polluted if the D.O value of water is less than

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  10. The amount of oxygen required for healthy growth of plants and animals...

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  11. A good quality of water will have

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  12. The amount of oxygen required to oxidise organic substance present in ...

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  13. Chemical oxygen demand is determined by using

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  14. COD is a measure of

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  15. The amount of oxygen used by micro organisms present in water for five...

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  16. Which of the following is a measure of bacteria present in water

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  17. Which of the following does not indicate high level of pollutants or t...

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  19. The study of toxicity of organo metallic compounds is termed as

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  20. The TLV values of four pollutants A, B, C and Dare 9ppm, 10ppm, 100ppm...

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