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Which of the following does not indicate...

Which of the following does not indicate high level of pollutants or the toxic substances I) High DO value II) High COD value Ill) High BOO value IV) High TLV The correct combination is

A

All are correct

B

I and IV only

C

II and III only

D

III and IV only

Text Solution

Verified by Experts

The correct Answer is:
B
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AAKASH SERIES-ENVIRONMENTAL CHEMISTRY-OBJECTIVE EXERCISE - 1 (Definition of terms- Introduction)
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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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