This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part Ii) Chapter 14 Environmental Chemistry – Quiz 34 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part Ii) Chapter 14 Environmental Chemistry Quiz 34 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Scrubbers are devices installed in smokestacks to A) Reduce the amount of materials such as SO$_{2}$ in the smoke they discharge. B) Clean out the stack so smoke can move rapidly upwards. C) Reduce the amount of sulphur in coal before it is burned. D) Clean out the boilers for more efficient operation. Show Answer Correct Answer: A) Reduce the amount of materials such as SO$_{2}$ in the smoke they discharge. 2. What is the definition of a renewable resource? A) Things that don't run out. B) Things that do run out. C) Stuff that makes things happen. D) None of the above. Show Answer Correct Answer: A) Things that don't run out. 3. What do decomposers break down? A) Living organisms. B) Sunlight. C) Minerals. D) Fossil fuels. Show Answer Correct Answer: A) Living organisms. 4. Which of the following are not standard procedures to store hazardous chemicals at home? A) Keep out of reach of children. B) Store in a warm, moist place. C) Keep oxidizers away from flammable. D) Discard old hazardous products. Show Answer Correct Answer: B) Store in a warm, moist place. 5. Six elements make up 99% of the human body. Which grouping below does NOT contain any of those elements? A) Nitrogen, Phosphorus. B) Calcium, Magnesium. C) Sulfur, Potassium. D) Lithium, Iodine. Show Answer Correct Answer: D) Lithium, Iodine. 6. Nitrogen fixation refers to: A) The conversion of nitrates into nitrogen gas by fungi. B) The process by which certain bacteria convert atmospheric nitrogen gas into compounds usable by plants. C) The absorption of nitrogen by animal digestive systems. D) The addition of nitrogen to water to increase pH. Show Answer Correct Answer: B) The process by which certain bacteria convert atmospheric nitrogen gas into compounds usable by plants. 7. Which of the following would lead to an increase in dissolved oxygen in a body of water? A) Warmer temperatures. B) Thermal pollution. C) Photosynthesis. D) Cellular respiration. E) Hypoxia. Show Answer Correct Answer: C) Photosynthesis. 8. An environmental problem which atmospheric chemistry does not addressed is A) Acid mine water. B) Photochemical smog. C) Acid rain. D) Global warming. Show Answer Correct Answer: A) Acid mine water. 9. What is the pH value of a neutral substance? A) 0. B) 7. C) 14. D) 4. Show Answer Correct Answer: B) 7. 10. Water beads up on the surface of a penny because of what property? A) Adhesion. B) High Surface Tension. C) Universal Solvent. D) Changes in Density. Show Answer Correct Answer: B) High Surface Tension. 11. Algae blooms will ..... the amount of dissolved oxygen in an aquatic system. A) Decrease. B) Increase. C) All the above. D) None of the above. Show Answer Correct Answer: A) Decrease. 12. What absorbs ultraviolet rays in the atmosphere? A) Troposphere. B) Stratosphere. C) Ozone layer. D) Greenhouse gases. Show Answer Correct Answer: C) Ozone layer. 13. What is the main cause of ocean acidification? A) Increased $CO_2$. B) Oil spills. C) Plastic pollution. D) Agricultural runoff. Show Answer Correct Answer: A) Increased $CO_2$. 14. Explain the role of carbon dioxide in the greenhouse effect. A) Carbon dioxide absorbs ultraviolet radiation. B) Carbon dioxide has no impact on the greenhouse effect. C) Carbon dioxide reduces the Earth's temperature. D) Carbon dioxide acts as a greenhouse gas by trapping heat in the Earth's atmosphere. Show Answer Correct Answer: D) Carbon dioxide acts as a greenhouse gas by trapping heat in the Earth's atmosphere. 15. What is a common cause of land pollution related to agriculture? A) Urbanization. B) Deforestation. C) Excessive use of synthetic fertilizers. D) Mining. Show Answer Correct Answer: C) Excessive use of synthetic fertilizers. 16. Acid rain increases leaching of which nutrient from soil? A) Nitrate. B) Potassium. C) Calcium. D) All of these. Show Answer Correct Answer: D) All of these. 17. When the alkali metals react with water, which reacts most vigorously? A) Francium. B) Rubidium. C) Potassium. D) Sodium. Show Answer Correct Answer: A) Francium. 18. ..... is released when alkali metal react with water A) Hydrogen. B) Oxygen. C) Metahne. D) Carbon di oxide. Show Answer Correct Answer: A) Hydrogen. 19. Carbon moves through the food chain mainly by: A) Photosynthesis. B) Combustion. C) Feeding. D) Evaporation. Show Answer Correct Answer: C) Feeding. 20. What is the general term for substances used to protect crops from pests? A) Fertilizers. B) Pesticides. C) Herbicides. D) Fungicides. Show Answer Correct Answer: B) Pesticides. 21. What is the role of visual aids in teaching environmental chemistry? A) To confuse students. B) To illustrate concepts. C) To limit understanding. D) To replace textbooks. Show Answer Correct Answer: B) To illustrate concepts. 22. Which metal is too reactive to be extracted using carbon? A) Zinc. B) Lead. C) Aluminium. D) Copper. Show Answer Correct Answer: A) Zinc. 23. Patty believes that any biodegradable product is better than a non-biodegradable product. What is she not considering? A) The time the product may take to degrade. B) The conditions needed to degrade the product. C) The by-products that result when the product degrades. D) All of the above. Show Answer Correct Answer: D) All of the above. 24. How do greenhouse gas emissions affect global temperatures? A) Greenhouse gas emissions cool the planet by reflecting sunlight. B) Greenhouse gas emissions increase global temperatures by trapping heat in the atmosphere. C) Greenhouse gas emissions have no impact on global temperatures. D) Greenhouse gas emissions decrease global temperatures by absorbing heat. Show Answer Correct Answer: B) Greenhouse gas emissions increase global temperatures by trapping heat in the atmosphere. 25. *Which of the following is NOT an example of a heavy metal? A) Cadmium. B) Zinc. C) Lithium. D) Lead. Show Answer Correct Answer: C) Lithium. ← 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