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The TLV values of four pollutants A, B, ...

The TLV values of four pollutants A, B, C and Dare 9ppm, 10ppm, 100ppm and 500 ppm respectively. The most toxic amount them is

A

A

B

B

C

C

D

D

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A
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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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