This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part Ii) Chapter 14 Environmental Chemistry – Quiz 17 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part Ii) Chapter 14 Environmental Chemistry Quiz 17 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is the term used to describe the excessive growth of algae in water due to nutrient enrichment? A) Algae Burst. B) Algae Bloom. C) Algae Spread. D) Algae Surge. Show Answer Correct Answer: B) Algae Bloom. 2. The 3 major plant nutrients (which are in most fertilizers) are all EXCEPT A) Nitrogen. B) Oxygen. C) Phosphorus. D) Potassium. Show Answer Correct Answer: B) Oxygen. 3. *True or false:you can dispose of hazardous chemicals safely by pouring them into a storm sewer A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 4. Identify the incorrect statements in the following A) Chlorofluorocarbons are responsible for ozone layer depletion. B) Green house effect is responsible for global warming. C) Ozone layer does not permit infrared radiation from the sun to reach the earth. D) Acid rain the is mostly because of oxides of nitrogen and sulphur. Show Answer Correct Answer: C) Ozone layer does not permit infrared radiation from the sun to reach the earth. 5. If fertilizers from a farm run off into a nearby lake, which is most likely to happen? A) An algae bloom. B) Coliform growth. C) High water hardness. D) Low turbidity. Show Answer Correct Answer: A) An algae bloom. 6. Test for sulphate ions is ..... A) Add acid. B) Add barium chloride. C) Add silver nitrate. D) None of the above. Show Answer Correct Answer: B) Add barium chloride. 7. What should be recorded at different elapsed times during the experiment? A) Temperature. B) Balloon inflation. C) Color change. D) Smell. Show Answer Correct Answer: B) Balloon inflation. 8. *An example of a micronutrient is: A) Hydrogen. B) Carbon. C) Oxygen. D) Selenium. Show Answer Correct Answer: D) Selenium. 9. Which statement is expressing a scientific perspective? A) How expensive is it to clean up the chemical pollution?. B) Which is more important, people's wants or wildlife's needs?. C) Are laws and regulations in place that prevent dumping?. D) What is causing this algae to form on the lake?. Show Answer Correct Answer: D) What is causing this algae to form on the lake?. 10. A ..... is a substance that increases the rate of a reaction without being used up during the reaction. A) Catalyst. B) Product. C) Reactant. D) Solute. Show Answer Correct Answer: A) Catalyst. 11. What happens to the non-biodegradable waste which is separated from domestic wastes? A) It is converted to compost. B) Sent for recycling. C) Deposited in landfills. D) Dumped in the ocean. Show Answer Correct Answer: B) Sent for recycling. 12. Acidic fog inhalation can damage: A) Liver. B) Lung tissues. C) Heart valves. D) Eyes only. Show Answer Correct Answer: B) Lung tissues. 13. *A bag of garden fertilizer has the label "10-5-15." The three numbers on a fertilizer label represent the percent composition of A) Nitrogen, phosphorus, and potassium. B) Nitrogen, sodium, and potassium. C) Carbon, phosphorus, and hydrogen. D) Carbon, oxygen, and hydrogen. Show Answer Correct Answer: A) Nitrogen, phosphorus, and potassium. 14. T/F:Some greenhouse gases are naturally present in the Earth's atmosphere A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 15. Which substance is directly affected by acid rain? A) Plastic. B) Limestone. C) Glass. D) Rubber. Show Answer Correct Answer: B) Limestone. 16. What is a common misconception about global warming? A) It has no impact on weather patterns. B) It is a recent phenomenon. C) It only results in warmer temperatures. D) It is only caused by human activities. Show Answer Correct Answer: C) It only results in warmer temperatures. 17. What type of metals tarnish QUICKLY A) Very reactive ones. B) Unreactive ones. C) Fairly reactive ones. D) All of the above. Show Answer Correct Answer: A) Very reactive ones. 18. Which of the following is a consequence of ozone layer depletion? A) Enhanced marine life. B) Skin cancer. C) Increased crop yield. D) Improved air quality. Show Answer Correct Answer: B) Skin cancer. 19. The least amount of freshwater on earth comes from? A) Glaciers and ice caps. B) Ground water. C) Rivers. D) Swamps. Show Answer Correct Answer: C) Rivers. 20. What happens during the primary stage of sewage treatment? A) Sedimentation of solids. B) Biological breakdown of organic matter. C) Addition of chlorine. D) Removal of metals. Show Answer Correct Answer: A) Sedimentation of solids. 21. Parts Per Million (ppm) is best described as: A) A measure of acidity from 0 to 14. B) A unit expressing the concentration of a substance in water or air; one part per million units of solution or air. C) A measure of wind speed affecting air quality. D) A method to convert sulfur dioxide to gypsum. Show Answer Correct Answer: B) A unit expressing the concentration of a substance in water or air; one part per million units of solution or air. 22. What is the purpose of the Chemistry Triangle in teaching? A) To simplify chemical equations. B) To connect concepts at different levels. C) To memorize chemical formulas. D) To focus on laboratory techniques. Show Answer Correct Answer: B) To connect concepts at different levels. 23. Biomagnification is the process by which: A) Chemicals increase in concentration at each trophic level of a food chain. B) Organisms grow larger due to increased food intake. C) Energy is transferred from one trophic level to another. D) Nutrients are cycled through the ecosystem. Show Answer Correct Answer: A) Chemicals increase in concentration at each trophic level of a food chain. 24. The smaller the particle size the faster the rate of dissolution (rate of dissolving). A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 25. What is the significance of the biochemical oxygen demand (BOD) in water quality? A) BOD measures the temperature of water and its effects on aquatic life. B) BOD is significant as it indicates the level of organic pollution and water quality. C) BOD indicates the presence of heavy metals in water samples. D) BOD is used to determine the mineral content in drinking water. Show Answer Correct Answer: B) BOD is significant as it indicates the level of organic pollution and water quality. ← 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