This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part Ii) Chapter 14 Environmental Chemistry – Quiz 32 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part Ii) Chapter 14 Environmental Chemistry Quiz 32 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of these processes releases carbon dioxide into the air? A) Dissolving in sea water. B) Combustion of fossil fuels. C) Plants being eaten by animals. D) None of the above. Show Answer Correct Answer: B) Combustion of fossil fuels. 2. What are the gases can cause acid rain? A) Sulfur dioxide and nitrogen oxides. B) Hydrogen and argon. C) Oxygen and helium. D) Carbon monoxide and methane. Show Answer Correct Answer: A) Sulfur dioxide and nitrogen oxides. 3. What is the main source of carbon monoxide? A) Photosynthesis. B) Incomplete combustion of fuels. C) Ocean evaporation. D) Volcanic eruptions. Show Answer Correct Answer: B) Incomplete combustion of fuels. 4. Name the gas produced in incomplete combustion? A) Hydrogen. B) Carbon monoxide. C) Oxygen. D) Nitrogen. Show Answer Correct Answer: B) Carbon monoxide. 5. Factors that affect biodegradation include some of the following EXCEPT ..... A) PH. B) Temperature. C) Nutrient Availability. D) Water Supply. Show Answer Correct Answer: D) Water Supply. 6. Word used to describe chemicals scattering in various directions ..... A) Percolation. B) Travelling. C) Dilution. D) Dispersion. Show Answer Correct Answer: D) Dispersion. 7. Which statement about indoor air pollution is FALSE? A) Tobacco smoke is a type of indoor air pollutant. B) It is caused entirely by indoor-source air pollutants. C) Carbon and soot are indoor particulate matters. D) Indoor heating can produce NOx. Show Answer Correct Answer: B) It is caused entirely by indoor-source air pollutants. 8. What is the correct word equation for photosynthesis? A) Glucose + water $\rightarrow$ oxygen + carbon dioxide. B) Oxygen + glucose $\rightarrow$ carbon dioxide + water. C) Carbon dioxide + water $\rightarrow$ glucose + oxygen. D) 6CO$_{2 }$+ 6H$_{2}$O $\rightarrow$ C$_{6}$H$_{12}$O$_{6}$ + 6O$_{2}$. Show Answer Correct Answer: C) Carbon dioxide + water $\rightarrow$ glucose + oxygen. 9. The second step of the water treatment process is ..... A) Coagulation. B) Disinfection. C) Filtration. D) Sedimentation. E) Flocculation. Show Answer Correct Answer: E) Flocculation. 10. A molecule that helps enzymes function in the body A) Vitamin. B) Protein. C) Pepsin. D) Litmus. Show Answer Correct Answer: A) Vitamin. 11. *Leachate is: A) *a lethal dose given to an organism. B) *waste water used in your home. C) *liquid that dissolves and carries substances as it passes through soil. D) *a greenhouse gas. Show Answer Correct Answer: C) *liquid that dissolves and carries substances as it passes through soil. 12. Which is wrong with respect to our responsibility as a human being to protect our environment?(a) Avoiding the use of floodlighted facilities(b) Setting up compost tin in gardens(c) Using plastic bags(d) Restricting the use of vehicles A) A. B) B. C) C. D) D. Show Answer Correct Answer: C) C. 13. Dalam kajian baseline kualitas lingkungan, analis menemukan peningkatan BOD di sungai dekat pabrik pupuk. Untuk menilai apakah ini dampak kumulatif, mahasiswa harus ..... A) Mengabaikan data historis karena hanya data saat ini yang penting. B) Membandingkan tren jangka panjang dan menghubungkannya dengan berbagai sumber pencemaran. C) Menyimpulkan langsung bahwa pabrik pupuk penyebab tunggal. D) Fokus pada parameter fisika saja. Show Answer Correct Answer: B) Membandingkan tren jangka panjang dan menghubungkannya dengan berbagai sumber pencemaran. 14. Recycling helps the environment by: A) Creating more waste. B) Saving resources. C) Polluting the sea. D) Making landfills. Show Answer Correct Answer: B) Saving resources. 15. There are 50 mg of salt in 8, 000 mg of water. Write them in ppm. A) 160ppm. B) 40, 000ppm. C) 4, 000ppm. D) 6, 250ppm. Show Answer Correct Answer: D) 6, 250ppm. 16. The approximate pH of stomach acid is ..... A) 4. B) 6. C) 1.5. D) 10. Show Answer Correct Answer: C) 1.5. 17. What is the adverse effect of methane to the environment? A) Methane helps to cool the environment. B) Contribution to global warming and climate change. C) Methane contributes to the growth of plant life. D) Methane has no adverse effect on the environment. Show Answer Correct Answer: B) Contribution to global warming and climate change. 18. How many steps are in the water treatment process? A) 4. B) 5. C) 6. D) 7. Show Answer Correct Answer: B) 5. 19. Which of the following government agencies is responsible for the Clean Air Act? A) The USGS. B) The USDA. C) The EPA. D) The USDOJ. Show Answer Correct Answer: C) The EPA. 20. What is crucial to do after decontaminating a site or implementing remediation technology systems? A) Ignore the site. B) Continue monitoring the site. C) Remove all equipment. D) Leave the site unattended. Show Answer Correct Answer: B) Continue monitoring the site. 21. What is a significant consequence of increased greenhouse gas emissions? A) Decreased global temperatures. B) Increased sea levels. C) Improved air quality. D) Enhanced biodiversity. Show Answer Correct Answer: B) Increased sea levels. 22. What is the primary impact of underground mining on the Earth's surface? A) Increased vegetation. B) Formation of voids and potential landslides. C) Improved soil quality. D) Enhanced mineral content. Show Answer Correct Answer: B) Formation of voids and potential landslides. 23. What is tar? A) A plant used to make cigarettes. B) A toxic metal found in rechargeable batteries. C) A chemical released by the body in exciting situations. D) A sticky substance formed by cigarette smoke. Show Answer Correct Answer: D) A sticky substance formed by cigarette smoke. 24. Which one of the following substances used in dry cleaning is a better strategy to control environmental pollution?(a) Sulphur dioxide(b) Carbon dioxide(c) Nitrogen dioxide(d) Tetrachloroethylene A) A. B) B. C) C. D) D. Show Answer Correct Answer: B) B. 25. Aluminum toxicity in plants leads to: A) Enhanced root growth. B) Stunted roots and nutrient deficiency. C) Chlorophyll increase. D) Stronger stems. Show Answer Correct Answer: B) Stunted roots and nutrient deficiency. ← PreviousNext →Related QuizzesClass 11 Chemistry (Part Ii) Chapter 14 Environmental Chemistry Quiz 1Class 11 Chemistry (Part Ii) Chapter 14 Environmental Chemistry Quiz 2Class 11 Chemistry (Part Ii) Chapter 14 Environmental Chemistry Quiz 3Class 11 Chemistry (Part Ii) Chapter 14 Environmental Chemistry Quiz 4Class 11 Chemistry (Part Ii) Chapter 14 Environmental Chemistry Quiz 5Class 11 Chemistry (Part Ii) Chapter 14 Environmental Chemistry Quiz 6Class 11 Chemistry (Part Ii) Chapter 14 Environmental Chemistry Quiz 7Class 11 Chemistry (Part Ii) Chapter 14 Environmental Chemistry Quiz 8Class 11 Chemistry (Part Ii) Chapter 14 Environmental Chemistry Quiz 9Class 11 Chemistry (Part Ii) Chapter 14 Environmental Chemistry Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books