This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part Ii) Chapter 14 Environmental Chemistry – Quiz 18 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part Ii) Chapter 14 Environmental Chemistry Quiz 18 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Rain washing soil away from a hillside is an example of A) Abrasion. B) Erosion. C) Deposition. D) Weathering. Show Answer Correct Answer: B) Erosion. 2. What is the pH of a neutral solution at 25$^\circ$C? A) 1. B) 5. C) 7. D) 14. Show Answer Correct Answer: C) 7. 3. The main oxidizing agents in cloud water are: A) H2O and CO2. B) O3, H2O2, and OH radicals. C) CH4 and H2S. D) Cl2 and HCl. Show Answer Correct Answer: B) O3, H2O2, and OH radicals. 4. Which statement about acids and bases is correct? A) Acids have pH greater than 7; bases have pH less than 7. B) Acids and bases both have a pH of 7. C) Acids have pH less than 7; bases have pH greater than 7. D) Acids are always safe to touch. Show Answer Correct Answer: C) Acids have pH less than 7; bases have pH greater than 7. 5. The nitrogen in the atmosphere is in the form of: A) NO3. B) N2. C) NO4-. D) N3. Show Answer Correct Answer: B) N2. 6. Substance produces hydroxide ions when dissolved in water A) Base. B) Acid. C) Salt. D) Sugar. Show Answer Correct Answer: A) Base. 7. What process removes carbon dioxide from the air? A) Respiration. B) Photosynthesis. C) Combustion. D) Decomposition. Show Answer Correct Answer: B) Photosynthesis. 8. Ground-level ozone primarily forms from reactions involving A) Chlorofluorocarbons and water vapor. B) Nitrogen oxides and volatile organic compounds. C) Carbon dioxide and oxygen in the stratosphere. D) Ammonia and phosphorus in soil. Show Answer Correct Answer: B) Nitrogen oxides and volatile organic compounds. 9. Chemicals used to kill insects, weeds, and other pests A) Salinization. B) Pesticide. C) Biological pest control. D) Genetic engineering. Show Answer Correct Answer: B) Pesticide. 10. *Which of the following indicate healthy water sample? A) Mayflies. B) Larva. C) Worms. D) Maggots. Show Answer Correct Answer: A) Mayflies. 11. What are the key points to address when teaching about natural resources and industry? A) Natural resources are classified into renewable and non-renewable resources. B) Industries rely on natural resources as raw materials for manufacturing products. C) Soaps and detergents are substances that remove dirt from surfaces. D) Natural resources are materials that occur in nature and can be used for economic gain. Show Answer Correct Answer: A) Natural resources are classified into renewable and non-renewable resources. 12. Why can't plants take nitrogen directly from the atmosphere? A) Nitrogen is toxic to plants in its atmospheric form. B) Plants require nitrogen in a converted form for growth. C) Nitrogen is only available in solid form in the atmosphere. D) Plants can only absorb oxygen from the atmosphere. Show Answer Correct Answer: B) Plants require nitrogen in a converted form for growth. 13. Which of the following is the best method of obtaining pure water from seawater? A) Filtration. B) Boiling. C) Distillation. D) Chlorination. Show Answer Correct Answer: C) Distillation. 14. What happened to the pH of the ocean water as more carbon dioxide was added to the oceans? A) More acidic. B) More basic. C) More neutral. D) Increased in pH. Show Answer Correct Answer: A) More acidic. 15. The most sensitive freshwater organisms to acidification are: A) Crustaceans. B) Fish eggs and larvae. C) Amphibians. D) Algae. Show Answer Correct Answer: B) Fish eggs and larvae. 16. Which of these is NOT a classification of particulate pollutants? A) Smoke. B) Fumes. C) Fog. D) Mists. Show Answer Correct Answer: C) Fog. 17. What is a greenhouse gas? A) A gas that helps photosynthesis. B) A gas that reflects sunlight. C) A gas that traps heat. D) A gas found only in greenhouses. Show Answer Correct Answer: C) A gas that traps heat. 18. A healthy water system would have a pH of what? A) 0-2. B) 4-7. C) 6-8. D) 10-12. Show Answer Correct Answer: C) 6-8. 19. What colour flame is observed in the sodium flame test? A) Blue. B) Green. C) Yellow. D) Red. Show Answer Correct Answer: C) Yellow. 20. How did volcanic activity change the Earth's early atmosphere? A) Released large amounts of gases such as carbon dioxide and water vapor. B) Released large amounts of gases such as oxygen. C) Released large amounts of gases such as carbon dioxide, water vapour and oxygen. D) Released very little amounts of carbon dioxide. Show Answer Correct Answer: A) Released large amounts of gases such as carbon dioxide and water vapor. 21. What is used for the purpose of bleaching clothes in the process of laundry? A) CO2. B) H2O2. C) H2O. D) CO. Show Answer Correct Answer: B) H2O2. 22. Which statement about carbon dioxide in the atmosphere is consistent with the section on monitoring the atmosphere? A) It is entirely man-made and absent naturally. B) It is a greenhouse gas naturally present but increased by human activities, contributing to enhanced greenhouse effect and global warming. C) It is a pollutant only at ground level and beneficial at high altitudes. D) It has no role in climate change. Show Answer Correct Answer: B) It is a greenhouse gas naturally present but increased by human activities, contributing to enhanced greenhouse effect and global warming. 23. A gas with high solubility usually has A) High vapor pressure. B) Low Henry's constant. C) High polarity. D) Low reaction with water. Show Answer Correct Answer: C) High polarity. 24. *If blue litmus paper stays blue and red litmus paper stays red, what can you determine A) *pH. B) *it is an acid. C) *it is a base. D) *it is neutral. Show Answer Correct Answer: D) *it is neutral. 25. When we discuss greenhouse gases what is the main one we discuss? A) Methane (CH$_{4}$). B) Carbon Dioxide (CO$_{2}$). C) Nitrous oxide (N$_{2}$O). D) Flourinated gases. Show Answer Correct Answer: B) Carbon Dioxide (CO$_{2}$). ← 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