Environmental chemistry explores the chemical changes in the environment. It also discusses how unfavourable changes to our environment affect people, animals, and plants badly. A variety of other broad areas are also covered in it, comprising biology, medicine, psychology, toxicology, biochemistry, analytical chemistry, organic chemistry, inorganic chemistry, and pharmaceutical chemistry.
Download Class 11 Chemistry Worksheet on Chapter 14 Environmental Chemistry Set 5 PDF
CBSE Class 11 Chemistry Chapter 14 Environmental Chemistry Worksheet – Set 5
Q1. Which of the following is not a common component of photochemical smog?
(a) Chlorofluorocarbon (CFCs)
(b) Acrolein
(c) Peroxy acetyl nitrate
(d) All of the above
Q2. Which of the following statements is incorrect?
(a) Acid rain is primarily caused by oxides of nitrogen and sulphur
(b) Greenhouse effect is accountable for global warming
(c) Ozone layer does not allow infrared radiations from the sun to enter the earth
(d) Chloro fluoro carbon (CFCs) are liable for the ozone layer depletion
Q3. Which of the following is not a greenhouse gas?
(a) Oxygen
(b) Carbon dioxide
(c) Nitrogen dioxide
(d) All of the above
Q4. Which of the following metal ions is responsible for Minamata disease?
(a) Copper ion
(b) Cobalt ion
(c) Mercury ion
(d) All of the above
Q5. Which of the following gas leaked from a storage tank of the union carbide plant in the Bhopal gas tragedy?
(a) Phosgene
(b) Methyl amine
(c) Methyl isocyanate
(d) None of the above
Q6. Which of the following gas is emitted by supersonic jet planes that slowly depletes the concentration of the ozone layer?
(a) Nitrogen monoxide
(b) Carbon monoxide
(c) Sulphur dioxide
(d) All of the above
Q7. What is the maximum prescribed concentration of cadmium in drinking water?
(a) 0.005 ppm
(b) 0.05 ppm
(c) 0.5 ppm
(d) None of the above
Q8. Which of the following statements is incorrect?
(a) Carbon monoxide does not play any part in photochemical smog formation
(b) Photochemical smog is an oxidising agent
(c) Photochemical smog is formed via photochemical reactions involving solar energy
(d) Photochemical smog does not provoke any eye and throat irritation
Q9. What is the greenhouse effect?
Q10. What are the sources of DO in water?
Q11. What is the effect of CFC on the ozone layer?
Q12. Explain smog in brief.
Q13. What is PAN?
Q14. What is the primary reason for ozone depletion?
Q15. What are viable and non-viable particulates?
Q16. What does the amount of BOD indicate?
Q17. What is the primary difference between biodegradable and non-biodegradable pollutants?
Q18. What are mists and dust?
Q19. What happens when there is high algae formation in water?
Q20. Are the greenhouse effect and global warming interrelated? If yes, give the reason.
The earth partially absorbs the sun’s radiation, reflecting the remainder into the atmosphere. However, greenhouse gases form a blanket in the atmosphere, trapping radiation and preventing it from leaving. As a result, the earth’s temperature rises, resulting in global warming.
Download the PDF to access answers to the Chemistry Worksheet for Class 11 Chemistry Chapter 14 Environmental Chemistry Set – 5.
Read Also:
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- Class 11 Chemistry Chapter 14 Environmental Chemistry MCQs
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