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How are'freons' creating a hole in the o...

How are'freons' creating a hole in the ozone layer ?

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MBD PUBLICATION-ENVIRONMENTAL CHEMISTRY-QUESTION BANK
  1. What are primary and secondary valencies?

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  2. How NO is depleting ozone layer ?

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  3. How are'freons' creating a hole in the ozone layer ?

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  4. How ozone layer is formed and acting as a protecting umbrella ?

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  5. What are the chemical reactions involved in the ozone layer depletion?

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  6. List the main points of difference between 'London smog' and 'Photoche...

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  7. How smog is produced in the atmosphere ?

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  8. What is 'Acid Rain' ? What are its harmful effects ?

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  9. What are the effects of oil pollution in sea water ?

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  10. List at least five important sources responsible for water pollution.

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  11. What are the main inorganic and organic pollutants present in water ?

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  12. How synthetic detergents present as water pollutant create problem ?

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  13. Define BOD

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  14. Write about the structure of different regions of the atmosphere.

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  15. What are hydrosphere, lithosphere and biosphere ?

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  16. Define 'environmental chemistry'

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  17. Define environmental pollution. List three episodes of recent past of ...

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  18. Discuss the importance of dissolved oxygen in water. What processes ar...

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  19. How plant nutrients and pesticides act as water pollutants ?

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  20. What do you understand by ozone hole ? Why does it occur mainly over A...

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