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CFCs or freons : I. are highly reactiv...

CFCs or freons :
I. are highly reactive II. Non flammable III. Non toxic

A

I and III

B

I and II

C

II and III

D

I, II and III

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VMC MODULES ENGLISH-ENVIRONMENTAL CHEMISTRY-Level-2
  1. Classical and photochemical smog are :

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  2. Photochemical smog :

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  3. The common components of photochemical smog besides ozone and nitric o...

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  4. Photochemical smog causes serious health problems such as :

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  5. Photochemical smog leads to :

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  6. The upper stratosphere consists of considerable amount of X. X protect...

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  7. Ozone in the stratosphere is formed in the following manner :

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  8. Which of the following statements are incorrect ?

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  9. Which of the following chemicals cause depletion of the ozone layer ?

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  10. CFCs or freons : I. are highly reactive II. Non flammable ...

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  11. The CFCs are used in refrigerators, air conditioners, in the productio...

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  12. In 1980s atmospheric scientists working in Antarctica reported about d...

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  13. With the depletion of ozone layer more UV radiation filters into the t...

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  14. Pollution of water originates from human activities. Through different...

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  15. The most serious water pollutants are the disease causing agents calle...

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  16. Which of the following water pollutants are organic wastes ?

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  17. Ifthe concentration of dissolved oxygen in water is below X ppm, the g...

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  18. The amount of oxygen required by bacteria to break down the organic ma...

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  19. What is % by volume occupied by CO(2) in atmosphere ?

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  20. Depletion of ozone layer causes

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