This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part Ii) Chapter 14 Environmental Chemistry – Quiz 25 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part Ii) Chapter 14 Environmental Chemistry Quiz 25 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What cause land pollution? A) People throw too much rubbish in the sea. B) People throw too much rubbish everywhere. C) People reduce making rubbish. D) People reuse things. Show Answer Correct Answer: B) People throw too much rubbish everywhere. 2. Advantages of filtration in water purification are A) Kills all microorganisms in water. B) Removes all minerals salts in water. C) Water is clear and free from suspended particles. D) Does not contains dissolved substances. Show Answer Correct Answer: C) Water is clear and free from suspended particles. 3. What home habit reduces energy waste? A) Leaving taps on. B) Using double glazing. C) Heating empty rooms. D) Running empty fridges. Show Answer Correct Answer: B) Using double glazing. 4. How does global warming affect biodiversity? A) Promotes all species. B) Causes habitat loss. C) Increases all plant growth. D) Improves migration. Show Answer Correct Answer: B) Causes habitat loss. 5. A chemical has an LD 75 of 100 mg, and an LD 50 of 50 mg. A scientist puts 100 mg of that chemical inside 500 rats in a cage. How many are expected to live? A) 250. B) 500. C) 125. D) 375. Show Answer Correct Answer: C) 125. 6. What is the MAIN REASON why nitrates and phosphates aren't good inside water? A) They take up all the nutrients inside the water. B) They take up all the sunlight inside the water. C) They actually help the water. D) They take out all of the oxygen in the water. Show Answer Correct Answer: D) They take out all of the oxygen in the water. 7. Acid rain has a pH A) Less than 5.6. B) 6. C) 7. D) More than 8. Show Answer Correct Answer: A) Less than 5.6. 8. Which is NOT a part of an area's overall biodiversity? A) Ecosystem Biodiversity. B) Genetic Biodiversity. C) Evolution Biodiversity. D) Species Biodiversity. Show Answer Correct Answer: C) Evolution Biodiversity. 9. All rocks are made up of minerals. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 10. Which of the following is NOT a method to teach global warming? A) Group brainstorming. B) Ignoring student misconceptions. C) Using technology. D) Discussing real-life examples. Show Answer Correct Answer: B) Ignoring student misconceptions. 11. Which is a category of water pollution? A) Sediment. B) Medical. C) Food. D) Dihydrogen monoxide. Show Answer Correct Answer: A) Sediment. 12. What is the main role of a catalytic converter in a vehicle? A) Increase fuel efficiency. B) Reduce harmful emissions like carbon monoxide. C) Cool the engine. D) Store extra fuel. Show Answer Correct Answer: B) Reduce harmful emissions like carbon monoxide. 13. The process by which toxins are concentrated as they move up the food chain is called? A) Pollution. B) Biomagnification. C) Web magnification. D) Biomass stratification. Show Answer Correct Answer: B) Biomagnification. 14. Which practice helps reduce air pollution? A) Using public transportation. B) Burning more fossil fuels. C) Cutting down forests. D) Increasing vehicle use. Show Answer Correct Answer: A) Using public transportation. 15. Polimer yang tersusun dari satu jenis monomer disebut ..... A) Kopolimer. B) Homopolimer. C) Polimer bercabang. D) Polimer termoset. Show Answer Correct Answer: B) Homopolimer. 16. The correct equation for complete combustion of methane is ..... A) CH$_{4}$ + 2O$_{}$ $\rightarrow$ CO$_{}$. B) CH$_{3}$ + 2O$_{2}$ $\rightarrow$ 2H$_{2}$O. C) CH$_{4}$ + 2O$_{2}$ $\rightarrow$ CO$_{2}$ + 2H$_{2}$O. D) CH$_{4}$ + O$_{}$ $\rightarrow$ CO$_{2}$ + 2H$_{2}$O. Show Answer Correct Answer: C) CH$_{4}$ + 2O$_{2}$ $\rightarrow$ CO$_{2}$ + 2H$_{2}$O. 17. What is a precipitate? A) An insoluble reactant formed during a chemical reaction. B) An insoluble product formed during a chemical reaction. C) A soluble solvent in a saturated solution. D) A soluble solute in a saturated solution. Show Answer Correct Answer: B) An insoluble product formed during a chemical reaction. 18. Why is rising global temperature a concern? A) More sunlight. B) Cooler oceans. C) Melting ice caps. D) Less farming. Show Answer Correct Answer: C) Melting ice caps. 19. The ozone layer forms naturally by A) The interaction of CFC with oxygen. B) The interaction of UV radiation with oxygen. C) The interacton of IR radiation with oxygen. D) The interaction of oxygen and water vapour. Show Answer Correct Answer: B) The interaction of UV radiation with oxygen. 20. Which energy source does NOT contribute to air pollution? A) Coal. B) Wind. C) Oil. D) Natural gas. Show Answer Correct Answer: B) Wind. 21. When sodium reacts with hydrochloric acid, what is the name of the salt formed? A) Sodium Hydride. B) Sodium Chloride. C) Sodium Hydrochloric. D) Sodium Chlorine. Show Answer Correct Answer: B) Sodium Chloride. 22. Which term refers to gases like carbon dioxide, methane, water vapor, and nitrogen oxides that trap heat in the atmosphere and affect Earth's climate? A) Greenhouse Gases. B) Chemical Indicators. C) Biological Indicators. D) Scrubbers. Show Answer Correct Answer: A) Greenhouse Gases. 23. *Fish die when the pH of the water is A) 8. B) 7. C) 6. D) 4. Show Answer Correct Answer: D) 4. 24. Which layers contains the ozone layer? A) Troposphere. B) Stratosphere. C) Mesosphere. D) Thermosphere. Show Answer Correct Answer: B) Stratosphere. 25. What is the main purpose of the experiment described? A) To create a new substance. B) To observe yeast activity. C) To measure temperature changes. D) To change the color of the solution. Show Answer Correct Answer: B) To observe yeast activity. ← 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