Environmental Chemistry Three Marks Questions

11th Standard

    Reg.No. :


Time : 00:45:00 Hrs
Total Marks : 30
    10 x 3 = 30
  1. Dissolved oxygen in water is responsible for aquatic life. What processes are responsible for the reduction in dissolved oxygen in water?

  2. From where does ozone come in the photo chemical smog?

  3. Even though the use of pesticides increases the crop production, they adversely affect the living organisms. Explain the function and the adverse effects of the pesticides.

  4. On the basis of chemical reactions involved, explain how do CFC’s cause depletion of ozone layer in stratosphere?

  5. Explain how oxygen deficiency is caused by carbon monoxide in our blood? Give its effect

  6. What are the various methods you suggest to protect our environment from pollution?

  7. Write notes about great London smog.

  8. What are the effects of classical smog?

  9. How acetaldehyde is commercially prepared by green chemistry?

  10. What do you mean by ozone hole? What are its consequences?


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