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Mention the causes for formation of pola...

Mention the causes for formation of polar stratospheric clouds over Antarctica ? What happens when such clouds break up in presence of sunlight?

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PATHFINDER-ENVIRONMENTAL CHEMISTRY-QUESTION BANK
  1. Match Column-I with Column-II

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  2. Match Column-I with Column-II

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  3. Mention the causes for formation of polar stratospheric clouds over An...

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  4. Acid rain is known to contain some acids. Name these acids and mention...

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  5. Carbon monoxide is poisonous. Explain.

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  6. The TLV's of four pollutants A,B,C and D are 9 ppm 10ppm, 100ppm and 5...

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  7. Which is incorrect about 'green house effect'

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  8. Lung diseases are four times more in urban areas then in rural areas. ...

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  9. The species formed in the depletion of ozone layer by chlorofluorocar...

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  10. Wrong statement reading 'london smog' is

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  11. CFC' are effective scavengers for ozone due to

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  12. Which of the following is environmental friendly is reaction

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  13. 100 mt of a sample of water requires 0.98mg of K2Cr2O7(M.W=294) in pre...

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

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

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

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  17. Which of the following statements is false ?

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  18. Phosphate pollution is mainly caused by

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  19. Among the following how many are greenhouse gases ?

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

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