This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part Ii) Chapter 14 Environmental Chemistry – Quiz 4 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part Ii) Chapter 14 Environmental Chemistry Quiz 4 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What type of ecological pyramid is never inverted? A) Ecological pyramid. B) Energy pyramid. C) Numbers pyramid. D) Biomass pyramid. Show Answer Correct Answer: B) Energy pyramid. 2. The organism that indicates the water quality is a A) Water tester. B) Biological indicator. C) Water indicator. D) Biological tester. Show Answer Correct Answer: B) Biological indicator. 3. What human activity leads to acid rain? A) Burning fossil fuels. B) Fertilizer use. C) Pesticide use. D) CFCs. Show Answer Correct Answer: A) Burning fossil fuels. 4. Which of the following is NOT a stage in water treatment? A) Screening. B) Chlorination. C) Filtration. D) Evaporation. Show Answer Correct Answer: D) Evaporation. 5. The enhanced greenhouse effect is sometimes referred to as ..... A) Heat waves. B) Climate. C) Global warming. D) Temperature. Show Answer Correct Answer: C) Global warming. 6. What is one way soil pollution gets into water? A) The pollution melts when sunlight hits it. B) The pollution melts during a forest fire. C) The pollution is washed from the soil into the water by rain. D) The pollution is carried into the water by insects. Show Answer Correct Answer: C) The pollution is washed from the soil into the water by rain. 7. True or false. Acid rain caused in one country can cause problems in other nearby countries A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 8. Natural gas that contains hydrogen sulphide is called ..... A) "sulphuric" gas. B) "poisonous" gas. C) "bitter" gas. D) "sour" gass. Show Answer Correct Answer: D) "sour" gass. 9. *Fungicides would kill: A) Dandelions. B) Mosquitos. C) Aphids. D) Mushrooms. Show Answer Correct Answer: D) Mushrooms. 10. Which of the following best describes acid rain? A) Rain with a pH above 7. B) Rain with a pH below 5.6. C) Rain with a pH exactly 7. D) Rain with a pH of 10. Show Answer Correct Answer: B) Rain with a pH below 5.6. 11. Which of the following is NOT a source of protons in natural waters? A) Compounds containing sulfur. B) Hydrolysis of metals with high oxidation states. C) Gases in the atmosphere that dissolve. D) Weathering of limestone. Show Answer Correct Answer: D) Weathering of limestone. 12. Which type of chemical waste requires separate handling due to its hazard level? A) All waste can be handled together. B) Only liquid waste. C) Only solid waste. D) Radioactive waste. Show Answer Correct Answer: D) Radioactive waste. 13. Which alternative energy source reduces air pollution? A) Coal. B) Wind energy. C) Diesel. D) Natural gas. Show Answer Correct Answer: B) Wind energy. 14. The reaction SO2 + H2O $\rightarrow$ H2SO3 occurs in: A) Stratosphere. B) Cloud droplets. C) Troposphere. D) Ozone layer. Show Answer Correct Answer: C) Troposphere. 15. Dissolved oxygen levels must always be ..... to inicate good water quality A) 5ppm. B) Above 5ppm. C) Below 5ppm. D) Above 10ppm. Show Answer Correct Answer: B) Above 5ppm. 16. What are the main causes of water pollution? A) Natural evaporation. B) Rainwater collection. C) Desalination processes. D) Industrial waste, agricultural runoff, sewage and wastewater, plastic waste, oil spills. Show Answer Correct Answer: D) Industrial waste, agricultural runoff, sewage and wastewater, plastic waste, oil spills. 17. Modern sanitary landfills are lined with ..... to prevent ..... A) Sand, leaching. B) Clay, leaching. C) Sand, run-off. D) Clay, run-off. Show Answer Correct Answer: B) Clay, leaching. 18. The first step of the water treatment process is ..... A) Coagulation. B) Disinfection. C) Filtration. D) Sedimentation. E) Flocculation. Show Answer Correct Answer: A) Coagulation. 19. Which of these is not part of the carbon cycle? A) Condensation. B) Respiration. C) Photosynthesis. D) Combustion. Show Answer Correct Answer: A) Condensation. 20. What is the role of carbon dioxide in the greenhouse effect? A) Carbon dioxide cools the Earth's surface effectively. B) Carbon dioxide has no impact on climate change. C) Carbon dioxide contributes to the greenhouse effect by trapping heat in the atmosphere. D) Carbon dioxide reduces heat in the atmosphere. Show Answer Correct Answer: C) Carbon dioxide contributes to the greenhouse effect by trapping heat in the atmosphere. 21. Which of the following processes is primarily responsible for the breakdown of pollutants in the atmosphere? A) Photolysis. B) Hydrolysis. C) Oxidation. D) Reduction. Show Answer Correct Answer: A) Photolysis. 22. What two properties of aluminium make it suitable for aircraft and food containers, respectively? A) High density and high reactivity. B) Low density (light) and does not corrode. C) Good conductor of heat and is brittle. D) Poor conductor of electricity and is soft. Show Answer Correct Answer: B) Low density (light) and does not corrode. 23. Vehicles contribute mainly to acid rain via: A) CO2 emissions. B) NOx emissions. C) SO2 emissions. D) Dust. Show Answer Correct Answer: B) NOx emissions. 24. Which of the following is responsible for the depletion of the ozone layer in the upper strata of the atmosphere? A) Polyhalogens. B) Ferrocenes. C) Fullerenes. D) Freons. Show Answer Correct Answer: D) Freons. 25. A compound that has a pH lower than 7 is a(an) A) Acid. B) Base. C) Neutral. D) Water. Show Answer Correct Answer: A) Acid. ← 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 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 10Class 11 Chemistry (Part Ii) Chapter 14 Environmental Chemistry Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books