Environmental chemistry explores the origin, distribution, relationships, impacts, and fate of chemical species in the environment. Additionally, it examines our interactions with our surroundings from a social, economic, ecological, biological, and metabolic hierarchy. Furthermore, it incorporates a variety of broad fields like biology, medicine, psychology, biochemistry, toxicology, analytical chemistry, organic chemistry, inorganic chemistry, and pharmaceutical chemistry.
Download Class 11 Chemistry Worksheet on Chapter 14 Environmental Chemistry Set 3 PDF
CBSE Class 11 Chemistry Chapter 14 Environmental Chemistry Worksheet – Set 3
Q1. Which of the following gases is responsible for the Bhopal gas tragedy?
(a) Methyl amine
(b) Methyl isocyanate
(c) Methyl chloride
(d) All of the above
Q2. Which of the following is responsible for the depletion of the ozone layer in the upper stratosphere of the atmosphere?
(a) Fullerene
(b) Freons
(c) Ferrocene
(d) All of the above
Q3. Which of the following is the most dangerous pollutant of automobile exhaust?
(a) Lead
(b) Copper
(c) Mercury
(d) All of the above
Q4. Which of the following is the most abundant hydrocarbon pollutant?
(a) Methane
(b) Propane
(c) Acetylene
(d) All of the above
Q5. Which of the following species containing mercury is the most toxic?
(a) CH3Hg+
(b) HgCl2
(c) Hg metal
(d) All of the above
Q6. Which of the following metals has the maximum recommended level in drinking water?
(a) Cadmium
(b) Zinc
(c) Aluminium
(d) All of the above
Q7. What is the biological oxygen demand (BOD) value of clean water?
(a) Less than 5 ppm
(b) Less than 4 ppm
(c) Less than 3 ppm
(d) Less than 1 ppm
Q8. Which of the following has the least permissible limit in drinking water?
(a) Chlorides
(b) Dissolved oxygen
(c) Lead
(d) None of the above
Q9. Give a brief account of environmental chemistry.
Q10. What is the social relevance of environmental chemistry?
Q11. Where do we find good ozone? What are the advantages of ozone?
Q12. What do you understand by the term sludge?
Q13. Explain the formation of ozone in the atmosphere.
Q14. What do you mean by an ozone hole? What are its consequences?
Q15. What are the uses of herbicides? Explain with the help of examples.
Q16. What are pesticides? What are the effects of excessive use of pesticides?
Q17. Why should we measure the biological oxygen demand (BOD) of water bodies?
Q18. What is the primary cause of tropospheric pollution?
Q19. Explain the greenhouse effect in detail.
Q20. What are the reactions to stratospheric ozone depletion?
Download the PDF to access answers to the Chemistry Worksheet for Class 11 Chemistry Chapter 14 Environmental Chemistry Set – 3.
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