15.Environmental chemistry

2 & 3 Marks

1. What does the Environment refer to?

2. What is meant by Environmental chemistry?

3. What is Environmental pollution?

4. What are Pollutants?

5. Classify the Pollutants.

6. What are Degradable pollutants? Give examples.

7. What are Non-degradable pollutants? Give examples.

8. What is Atmosphere?

9. List out the different Regions of atmosphere.

10. What is the lowest layer of the atmosphere? Or What is Troposphere?

11. What is Hydrosphere?

12. What is Lithosphere?

13. What is Biosphere?

14. What is Atmospheric pollution? How is it Classified?

15. Learning about the Atmospheric pollution is essential. Why?

16. What is Air pollution?

17. What are the Types of Air pollutant? Give examples.

18. Write a note on Oxides of Sulphur in air pollution.

19. Write a note on Oxides of Nitrogen in air pollution.

20. Write a note on Carbon monoxide in air pollution.

21. Write a note on Carbon dioxide in air pollution.

22. Write a note on Air pollution.

23. Ethane burns completely in air to give CO2, while in a limited supply of air gives CO. The same gases are found in automobile exhaust. Both CO and CO2 are atmospheric pollutants.

      i) What is the danger associated with these gases?

     ii) How do the pollutants affect the human body?

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

25. Explain how Oxygen deficiency is caused by Carbon monoxide in our blood? Give its effect.

26. What would happen, if the Greenhouse gases were totally missing in the earth’s atmosphere?

27. What is Acid rain?

28. How is Acid rain formed?

29. What is Particulate matter? Give examples. Or What are Particulate pollutants? Give examples.

30. How is Particulate pollutants Classified?

31. Differentiate - Viable and Non-viable particulate pollutants.

32. Give the Techniques to reduce Particulate pollutants.

33. Define Smog.

34. How does Classical smog differ from Photochemical smog?

35. What are the Effects of Classical smog?

36. What are the Effects of Photo chemical smog?

37. From where does Ozone come in the Photo chemical smog?

38. How can be Controlled Photo chemical smog?

39. Which is considered to be Earth’s protective umbrella? Why?

40. What is Ozone Depletion Substances? Or What is ODS?

41. Explain - Depletion of Ozone Layer. Or Explain - Ozone Hole.

42. Every year when is “Ozone Layer Protection Day” celebrated? What is its Aim?

43. What is Water Pollution?

44. What is Algae bloom?

45. What is Eutrophication?

46. What is Biochemical Oxygen demand? What is its Unit? Or What is BOD? What is its Unit?

47. What is Chemical Oxygen Demand? Or What is COD?

48. Differentiate - BOD and COD. Or

      Differentiate - Biochemical Oxygen Demand and Chemical Oxygen Demand.

49. Dissolved Oxygen in water is responsible for aquatic life. What processes are responsible for the reduction in dissolved Oxygen in water?

50. A person was using water supplied by corporation. Due to shortage of water he started using

      underground water. He felt laxative effect. What could be the cause?

51. Which Institutions prescribe Standards for quality of drinking water?

52. What is Soil Pollution?

53. 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.

54. What is Waste Management?

55. What is Green chemistry?

56. How is Styrene produced by Traditional route?

57. How is Styrene produced by Greener route?

5 Marks

1. Explain how Greenhouse effect causes Global warming.

2. Explain the Cause and Hazardous effects of Greenhouse effect.

3. Explain the Cause and Hazardous effects of Global warming.

4. Explain the Effects of Acid rain.

5. Explain the Cause and Hazardous / Harmful effects of Acid rain.

6. Explain any three Particulate pollutants.

7. Explain the Health effects of Particulate pollutants.

8. Write a note on Classical smog. Or Write a note on London smog. Or 

    Write a note on Reducing smog.

9. Write a note on Photo chemical smog. Or Write a note on Los Angel Smog. Or

    Write a note on Oxidizing smog.

10. What is Environmental Impact of Ozone Depletion?

11. Explain the Cause and Hazardous effects of Ozone depletion.

12. Classify the Source of Water pollution and give examples.

13. What are the Causes of Water pollution? Or What are the reasons for Water pollution?

14. Explain - Harmful effects of Chemical water pollutants.

15. Mention the Standards prescribed by BIS for quality of drinking water. Or

      Tabulate the Standard characteristics prescribed for deciding the quality of drinking water.

16. Explain the Sources of Soil pollution.

17. What are the various methods you suggest to protect our Environment from pollution? Or

      Mention the Strategies to control Environmental pollution.

18. Explain the Importance of Green chemistry in day-to-day life.