This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part Ii) Chapter 14 Environmental Chemistry – Quiz 28 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part Ii) Chapter 14 Environmental Chemistry Quiz 28 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. *The level between the top soil and groundwater is called: A) *middle soil. B) *permeable soil. C) *ground soil. D) *water table. Show Answer Correct Answer: D) *water table. 2. What is ammonia converted into during the nitrogen cycle? A) Oxygen. B) Carbon dioxide. C) Nitrates. D) Hydrogen. Show Answer Correct Answer: C) Nitrates. 3. What is the purpose of incinerators in waste management? A) To recycle waste. B) To incinerate toxic waste. C) To store waste in landfills. D) To convert waste into compost. Show Answer Correct Answer: B) To incinerate toxic waste. 4. What are the disadvantage of using tetra chloride as a solvent for dry cleaning? A) Contaminates groundwater. B) Suspected carcinogen. C) Both A and B. D) None of the above. Show Answer Correct Answer: C) Both A and B. 5. What is a misconception about green chemistry and cleaner production? A) Green chemistry is not related to sustainability. B) Individual actions don't matter in addressing environmental issues. C) Cleaner production has no impact on reducing pollution. D) Technology alone can solve all environmental problems. Show Answer Correct Answer: D) Technology alone can solve all environmental problems. 6. Which of the following is the largest particle in soil? A) Sand. B) Silt. C) Humus. D) Clay. Show Answer Correct Answer: A) Sand. 7. A chemical is found given to 300 rats and is found to have killed 150 of them. This is an example of ..... A) Acute Toxicity. B) LD50. C) PPM. D) Chronic Toxicity. Show Answer Correct Answer: B) LD50. 8. Which statement about sulfur dioxide is accurate based on air quality monitoring? A) It reduces smog by neutralizing nitrogen oxides. B) It contributes to smog and acid rain and often comes from fossil fuel combustion. C) It is harmless to crops and human health. D) It primarily originates from photosynthesis in plants. Show Answer Correct Answer: B) It contributes to smog and acid rain and often comes from fossil fuel combustion. 9. Harmful ultraviolet radiation from the Sun is absorbed by A) Clouds. B) Ozone molecules. C) Soil. D) Water. Show Answer Correct Answer: B) Ozone molecules. 10. What element rusts? A) Carbon. B) Iron. C) Manganese. D) Potassium. Show Answer Correct Answer: B) Iron. 11. Define pollutants and give two examples. A) Sugar and salt. B) Two examples of pollutants are carbon monoxide and plastic waste. C) Water and sunlight. D) Oxygen and nitrogen. Show Answer Correct Answer: B) Two examples of pollutants are carbon monoxide and plastic waste. 12. An area of porous rock below ground level which can hold useful amounts of water is called A) A ground water well. B) An aquifer. C) An injection well. D) A recharge zone. Show Answer Correct Answer: B) An aquifer. 13. Water that soaks through the soil and carries dissolved substances into the soil is called ..... A) Acid rain. B) Leachate. C) Contaminant. D) Filtrate. Show Answer Correct Answer: B) Leachate. 14. *A substance with a pH of 9 is considered A) *strong base. B) *weak base. C) Neutral. D) *weak acid. E) *strong acid. Show Answer Correct Answer: B) *weak base. 15. Recycling paper reduces: A) Ozone. B) Trees cut down. C) Car use. D) Plastic production. Show Answer Correct Answer: B) Trees cut down. 16. Chemical responsible for ozone depletion is A) CO$_{2}$. B) NO$_{2}$. C) Peroxyacetyl nitrate (PAN). D) Chlorofluorocarbons (CFCs). Show Answer Correct Answer: D) Chlorofluorocarbons (CFCs). 17. Nutrients that promote normal growth, give you energy, and keep your skin healthy. There are two types:saturated and unsaturated. A) Fat. B) Protein. C) Carbohydrates. D) Nutrients. Show Answer Correct Answer: A) Fat. 18. The process of changing free nitrogen into a form that organisms can use them. A) Nitrogen formation. B) Nitrogen fixation. C) Climate change. D) Nitrification. Show Answer Correct Answer: B) Nitrogen fixation. 19. What is the efficiency rate of energy transfer between trophic levels in an ecosystem? A) 1%. B) 5%. C) 10%. D) 15%. Show Answer Correct Answer: C) 10%. 20. What is formed when sodium reacts with water? A) Sodium oxide and hydrogen. B) Sodium hydroxide and hydrogen. C) Sodium hydroxide and oxygen. D) Sodium hydroxide and carbon dioxide. Show Answer Correct Answer: B) Sodium hydroxide and hydrogen. 21. Caffine has an LD50 of 130ppm for mice. Which is the best reason that coffee and caffinated soft drinks are not considered dangerous? A) Caffine is only toxic to mice and not to humans. B) You would have to drink an enormous amounts of caffinated drinks to consume a dose that would amount to that concentration. C) LD50 is a rating only used for mice. D) Caffine is popular, so a high toxicity is acceptable. Show Answer Correct Answer: B) You would have to drink an enormous amounts of caffinated drinks to consume a dose that would amount to that concentration. 22. One effect of rising global temperatures is: A) Lower sea levels. B) Stronger gravity. C) Coral bleaching. D) More volcanic eruptions. Show Answer Correct Answer: C) Coral bleaching. 23. Pesticide run-off from agricultural areas is an example of a A) Point Source. B) Non-Point Source. C) All the above. D) None of the above. Show Answer Correct Answer: B) Non-Point Source. 24. What is the manipulated variable in the experiment above? A) The overall growth of the plants. B) The length of time that each plant grows. C) The amount of water that the plants receive. D) The brand of fertilizer that is used on each plant. Show Answer Correct Answer: D) The brand of fertilizer that is used on each plant. 25. What is biodiversity and why is it important for ecosystems? A) Biodiversity is the same as the total biomass of an ecosystem. B) Biodiversity is unimportant for ecosystem functions and services. C) Biodiversity is the variety of life in an ecosystem, and it is crucial for ecosystem health, stability, and the provision of essential services. D) Biodiversity refers to the number of species in a single habitat only. Show Answer Correct Answer: C) Biodiversity is the variety of life in an ecosystem, and it is crucial for ecosystem health, stability, and the provision of essential services. ← 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