This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part Ii) Chapter 14 Environmental Chemistry – Quiz 6 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part Ii) Chapter 14 Environmental Chemistry Quiz 6 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. In Antarctica ozone depletion is due to the formation of following compound. A) Acrolein. B) Peroxyacetyl nitrate. C) SO2 and SO3. D) Chlorine nitrate. Show Answer Correct Answer: D) Chlorine nitrate. 2. Where must wastewater be treated before being released into rivers or lakes? A) Sewage plants. B) Water reservoirs. C) Wastewater treatment plants. D) Ocean dumping sites. Show Answer Correct Answer: C) Wastewater treatment plants. 3. The loss or reduction of chlorophyll in the leaves is due to A) Bleaching by chlorine. B) Reduction by chlorofluorocarbons. C) Bleaching by sulphur dioxide. D) Oxidation by NO2. Show Answer Correct Answer: C) Bleaching by sulphur dioxide. 4. What role do methane emissions play in climate change? A) Methane emissions are primarily caused by solar activity. B) Methane emissions have no impact on climate change. C) Methane is a beneficial gas that cools the atmosphere. D) Methane emissions significantly contribute to climate change by acting as a potent greenhouse gas that traps heat in the atmosphere. Show Answer Correct Answer: D) Methane emissions significantly contribute to climate change by acting as a potent greenhouse gas that traps heat in the atmosphere. 5. Which of the following strategies would have the most direct impact reducing air pollution? A) Reusing waste materials. B) Recycling trash. C) Driving electric cars. D) Investing in fossil fuel burning technologies. Show Answer Correct Answer: C) Driving electric cars. 6. Pollutants being broken down by organisms such as bacteria and fungi is known as ..... A) Biomagnification. B) Biodegradation. C) Phytoremediation. D) Photolysis. Show Answer Correct Answer: B) Biodegradation. 7. The probability of an unwanted outcome ..... A) Risk. B) Certainty. C) Guarantee. D) Impossibility. Show Answer Correct Answer: A) Risk. 8. Study of deleterious effects of chemical agents on all living systems A) Poisonous. B) Toxicology. C) Hazardous. D) Exposure. Show Answer Correct Answer: B) Toxicology. 9. Given the K$_{sp}$ of PbBr$_{2}$ is 6.3 x 10$^{-6}$, calculate the solubility of PbBr$_{2}$ in water. A) 0.01865 mol/L. B) 0.00034 mol/L. C) 0.00063 mol/L. D) 0.01178 mol/L. Show Answer Correct Answer: D) 0.01178 mol/L. 10. The higher concentration of which gas in air can cause stiffness of flower buds?(a) SO$_{2}$(b) CO(c) NO$_{2}$(d) CO$_{2}$ A) A. B) B. C) C. D) D. Show Answer Correct Answer: A) A. 11. Photosynthesis by plants A) Uses up carbon dioxide and produces oxygen. B) Uses up oxygen and produces ammonia. C) Uses up carbon dioxide and produces methane. D) Uses up oxygen and produces carbon dioxide. Show Answer Correct Answer: A) Uses up carbon dioxide and produces oxygen. 12. What is one of the uses of DDT? A) To fertilize crops. B) To exterminate mosquitoes, which carry malaria. C) To enhance plant growth. D) To purify water. Show Answer Correct Answer: B) To exterminate mosquitoes, which carry malaria. 13. Which process does NOT affect the composition of water? A) Ion exchange. B) Recombination. C) Dissolution. D) Hydrothermal activity. Show Answer Correct Answer: B) Recombination. 14. An example of anthropogenic VOC is A) Formaldehyde. B) Methylbutanol. C) 3-carene. D) Limonene. Show Answer Correct Answer: A) Formaldehyde. 15. What does acid rain consist of? A) Sulfur Dioxide and Oxygen. B) Sulfur Dioxide and Nitrogen Oxide. C) Carbon and Nitrogen Oxides. D) Sulfur Dioxide and Carbon. Show Answer Correct Answer: B) Sulfur Dioxide and Nitrogen Oxide. 16. Which of these helps reduce emissions? A) Plastic bags. B) Electric cars. C) Coal plants. D) Landfilling waste. Show Answer Correct Answer: B) Electric cars. 17. Apa itu bioakumulasi dan bagaimana hubungannya dengan toksikologi? A) Bioakumulasi tidak ada hubungannya dengan toksikologi dan tidak memiliki implikasi kesehatan. B) Bioakumulasi adalah akumulasi zat beracun dalam organisme, relevan dengan toksikologi karena dapat menyebabkan peningkatan toksisitas dan risiko kesehatan. C) Bioakumulasi mengacu pada pemecahan racun di lingkungan. D) Bioakumulasi adalah proses detoksifikasi zat berbahaya dalam organisme. Show Answer Correct Answer: B) Bioakumulasi adalah akumulasi zat beracun dalam organisme, relevan dengan toksikologi karena dapat menyebabkan peningkatan toksisitas dan risiko kesehatan. 18. Which type of pollution control device removes particulates from factory emissions? A) Cyclone separator. B) Incinerator. C) Gas scrubber. D) Electrostatic precipitator. Show Answer Correct Answer: D) Electrostatic precipitator. 19. Ca(OH)$_{2 }$is an example of a(n) A) Acid. B) Base. C) Neutral. D) None of the above. Show Answer Correct Answer: B) Base. 20. Which gas is primarily responsible for the greenhouse effect? A) Nitrogen. B) Ozone. C) Carbon dioxide. D) Sulfur dioxide. Show Answer Correct Answer: C) Carbon dioxide. 21. Which of the following roles is played by carbohydrates in human nutrition? A) Act as an energy source. B) Assist enzyme function. C) Storage form of unused chemical energy. D) Structural component of cells in the body. Show Answer Correct Answer: A) Act as an energy source. 22. Name the poverty that is defined from social perspective ie., living standard is compared to the economic standards of population living in the surroundings A) Absolute poverty. B) Relative poverty. C) Situational poverty. D) Generational poverty. Show Answer Correct Answer: B) Relative poverty. 23. What is an ore? A) A combination of carbon and iron. B) A combination of metal and other elements. C) A combination of elements and oxide. D) A combination of metal and carbon. Show Answer Correct Answer: B) A combination of metal and other elements. 24. Plants take in water from the soil through a special kind of diffusion called ..... A) Active transport. B) Osmosis. C) Photolysis. D) Filtration. Show Answer Correct Answer: B) Osmosis. 25. Cyanide affects cattle through which of the following? A) Apple tree leave. B) Hay. C) Water. D) Vegetables. Show Answer Correct Answer: A) Apple tree leave. ← 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 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 10Class 11 Chemistry (Part Ii) Chapter 14 Environmental Chemistry Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books