This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part Ii) Chapter 14 Environmental Chemistry – Quiz 15 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part Ii) Chapter 14 Environmental Chemistry Quiz 15 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Advantage of using CO2 as a solvent for dry cleaning is A) Found in abundance. B) Inexpensive. C) Less harm to groundwater. D) Suspected carcinogen. Show Answer Correct Answer: C) Less harm to groundwater. 2. Which of the following is a source of particulate matter? A) Volcanic eruptions. B) Photosynthesis. C) Water evaporation. D) Soil erosion. Show Answer Correct Answer: A) Volcanic eruptions. 3. Sensitive soils to acid rain are usually: A) Calcareous. B) Granite-based. C) Rich in lime. D) Marine sediments. Show Answer Correct Answer: B) Granite-based. 4. What can acid rain corrode (react and dissolve)? A) Statues. B) Houses. C) Grass. D) Trees. Show Answer Correct Answer: A) Statues. 5. What is the role of free radicals in the atmosphere? A) Decrease ozone layer. B) Enhance UV radiation. C) Neutralize pollutants. D) Increase oxygen levels. Show Answer Correct Answer: A) Decrease ozone layer. 6. Which of the following is not one of the categories for water quality? A) Irrigation water. B) Recreational water. C) Protection of aquatic life. D) Acidic water. Show Answer Correct Answer: D) Acidic water. 7. The major acidic components of acid rain are: A) H2CO3 and HNO3. B) H2SO4 and HNO3. C) H2CO3 and H2SO3. D) H2O and CO2. Show Answer Correct Answer: B) H2SO4 and HNO3. 8. T/F:To calculate ppm (part-per-million) of a substance, you take the mass of the substance and divide it by the mass of the toxin. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 9. Which of the following is a typical dietary source of proteins? A) Rice. B) Meat. C) Vegetable oil. D) None of the above. Show Answer Correct Answer: B) Meat. 10. List the following steps of Water purification in the correct orderStep P:Water is passed through a screen to remove debris.Step Q:Pathogenic organisms are killed by chlorination, UV, or ozone.Step R:Suspended particles clump and settle out.Step S:A flocking agent, such as alum, is added to the water. A) P, Q, R, S. B) S, P, R, Q. C) P, S, R, Q. D) R, P, S, Q. E) S, R, P, Q. Show Answer Correct Answer: C) P, S, R, Q. 11. On the pH scale higher numbers indicate A) Acids. B) Bases. C) All the above. D) None of the above. Show Answer Correct Answer: B) Bases. 12. Jenis deformasi yang dapat kembali ke bentuk semula setelah beban dilepas adalah ..... A) Deformasi plastis. B) Deformasi permanen. C) Deformasi elastis. D) Deformasi geser. Show Answer Correct Answer: C) Deformasi elastis. 13. Which of the following is best for resource conservation? A) Burning materials. B) Burying rubbish. C) Reusing and recycling. D) Overproduction. Show Answer Correct Answer: C) Reusing and recycling. 14. Ingestion refers to: A) The process by which animals take in food. B) The passive movement of molecules down a concentration gradient. C) The breakdown of compounds due to reaction with water. D) The conversion of atmospheric gases into plant nutrients. Show Answer Correct Answer: A) The process by which animals take in food. 15. A pollutant metal with a high density (usually over 4.0g/mL) A) Heavy metal. B) Macromineral. C) Mercurial metal. D) Trace element. Show Answer Correct Answer: A) Heavy metal. 16. Which process causes acid rain? A) Evaporation. B) Combustion of fossil fuels. C) Photosynthesis. D) Nitrogen fixation. Show Answer Correct Answer: B) Combustion of fossil fuels. 17. How can conservation efforts help mitigate the impacts of climate change? A) Conservation efforts help mitigate climate change by preserving carbon-sequestering ecosystems and promoting biodiversity. B) Conservation efforts primarily focus on urban development and infrastructure. C) Conservation efforts have no impact on biodiversity or ecosystems. D) Conservation efforts increase carbon emissions by promoting industrial growth. Show Answer Correct Answer: A) Conservation efforts help mitigate climate change by preserving carbon-sequestering ecosystems and promoting biodiversity. 18. Which of the following is a natural air purification process? A) Photosynthesis. B) Combustion. C) Industrial emissions. D) Mining. Show Answer Correct Answer: A) Photosynthesis. 19. If a mass of 12.0 mg of mercury is dissolved in 100 kg of water, what is the concentration of mercury in ppm? A) 12 ppm. B) 1.2 ppm. C) 0.12 ppm. D) 0.012 ppm. Show Answer Correct Answer: C) 0.12 ppm. 20. One major difference between conventional farming practices and organic farming practices is that organic farmers can use A) Any pesticide they choose. B) Only pesticides derived from natural sources such as microbes, insects, or minerals. C) No pesticides at all. D) Only special synthetic pesticides. Show Answer Correct Answer: B) Only pesticides derived from natural sources such as microbes, insects, or minerals. 21. Emerging contaminants are A) Heavy metals such as lead and cadmium. B) Hydrocarbons. C) Herbicides and Pesticides. D) Caffeine, anti-biotics, disinfectants and other medication. Show Answer Correct Answer: D) Caffeine, anti-biotics, disinfectants and other medication. 22. Which kind of weathering involves the breakdown of rocks through direct contact with atmospheric conditions such as heat, water, ice and pressure? A) Physical. B) Chemical. C) All the above. D) None of the above. Show Answer Correct Answer: A) Physical. 23. The items below can be reused, except: A) Plastic and glass containers. B) Old computers and broken mobile phones. C) Old clothes and blankets. D) Aluminum cans and steel parts or items. Show Answer Correct Answer: B) Old computers and broken mobile phones. 24. Th components of filtration are separated based on A) Boiling point. B) Solubility. C) Particle size. D) None of the above. Show Answer Correct Answer: C) Particle size. 25. Which of the following statements is true about how using smaller salt crystals would affect the rate of making a salt solution in water? A) Smaller crystals increase the surface area and slow down dissolving. B) Smaller crystals decrease the surface area and speed up dissolving. C) Smaller crystals increase the surface area and speed up dissolving. D) Smaller crystals decrease the surface area and slow down dissolving. Show Answer Correct Answer: C) Smaller crystals increase the surface area and speed up dissolving. ← 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