This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part Ii) Chapter 14 Environmental Chemistry – Quiz 35 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part Ii) Chapter 14 Environmental Chemistry Quiz 35 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following is not an air pollutant? A) N2. B) N2O. C) NO. D) CO. Show Answer Correct Answer: A) N2. 2. The main elements in CFCs are A) Carbon, Calcium, Francium. B) Carbon, Chlorine, Fluorine. C) Chromium, Chlorine, Fluorine. D) Chlorine, Fluorine, Calcium. Show Answer Correct Answer: B) Carbon, Chlorine, Fluorine. 3. Reactions in galvanic cells are A) Spontaneous, redox reactions. B) Spontaneous, non-redox reactions. C) Non-spontaneous, redox reactions. D) Non-spontaneous, non-redox reactions. Show Answer Correct Answer: A) Spontaneous, redox reactions. 4. What is the condition required for initiation of photochemical smog? A) Null cycle. B) Photolysis of water. C) Removal of ozone. D) Quenching of OH radicals. Show Answer Correct Answer: A) Null cycle. 5. Many plants cannot grow in sandy soil. Why is this true? A) Sandy soil does not hold enough water. B) Air cannot pass through sandy soil. C) Roots cannot easily push through sandy soil. D) Sandy soil has too many nutrients. Show Answer Correct Answer: A) Sandy soil does not hold enough water. 6. Smoky stool syndrome is associated with toxicity of A) Iodine. B) Chlorine. C) Phosphorous. D) Carbon monoxide. Show Answer Correct Answer: C) Phosphorous. 7. Analysis of chemical impact examples in AMDAL of fertilizer factories to predict the most likely environmental risk. A) River eutrophication due to excess nitrogen and phosphorus from waste. B) Increase in soil pH due to acid sulfate from mining tailings. C) Benzene pollution causing carcinogenic effects in the air. D) Mercury bioaccumulation only in terrestrial ecosystems. Show Answer Correct Answer: A) River eutrophication due to excess nitrogen and phosphorus from waste. 8. What issues are not caused by greenhouse gases? (2) A) Depletion of the ozone. B) Warmer air temperatures. C) Melting ice caps. D) Flooding. E) Acid rain. Show Answer Correct Answer: E) Acid rain. 9. Which of the following is a natural source of pollution? A) Automobile emissions. B) Volcanic eruptions. C) Industrial waste. D) Chemical fertilizers. Show Answer Correct Answer: B) Volcanic eruptions. 10. The buffering capacity of water bodies depends on: A) Calcium carbonate content. B) Temperature. C) Depth. D) Organic matter. Show Answer Correct Answer: A) Calcium carbonate content. 11. The effects of industrial activity and the burning of fossil fuels on the environment include: A) Increased greenhouse gases and global warming. B) Decreased air pollution and cooling. C) Improved biodiversity and ecosystem health. D) Reduced carbon footprint and sustainability. Show Answer Correct Answer: A) Increased greenhouse gases and global warming. 12. Heavy metals leached by acid rain enter the food chain causing: A) Genetic mutations. B) Metal poisoning. C) Improved nutrition. D) Radiation sickness. Show Answer Correct Answer: B) Metal poisoning. 13. Which of the following is a major source of sulfur dioxide ( $SO_2$ A) Automobile exhaust. B) Volcanic eruptions. C) Burning coal. D) Fertilizer runoff. Show Answer Correct Answer: C) Burning coal. 14. Which metal is most susceptible to acid corrosion? A) Copper. B) Lead. C) Iron. D) All of these. Show Answer Correct Answer: D) All of these. 15. Which component of smog causes eye irritation? A) Carbon dioxide. B) Ozone. C) Water vapor. D) Methane. Show Answer Correct Answer: B) Ozone. 16. The upper stratosphere consisting of the ozone layer protects us from the sun's radiation that falls in the wavelength region of(a) 400-550 nm(b) 600-750 nm(c) 200-315 nm(d) 0.8-1.5 nm A) A. B) B. C) C. D) D. Show Answer Correct Answer: C) C. 17. What are the causes of water hardness? A) Dissolved liquids. B) Low pH levels. C) Rocks. D) High ammonia levels. Show Answer Correct Answer: C) Rocks. 18. Which term best describes the condition of water based on chemical, physical, and biological characteristics important for supporting life and human use? A) Biological Indicators. B) Water Quality. C) Air Quality. D) Monitoring. Show Answer Correct Answer: B) Water Quality. 19. Which of the following is a secondary pollutant? A) Carbon monoxide ( $CO$. B) Ozone ( $O_3$. C) Sulfur dioxide ( $SO_2$. D) Lead ( $Pb$. Show Answer Correct Answer: B) Ozone ( $O_3$. 20. Which of the following gases is considered a major greenhouse gas? A) Oxygen. B) Nitrogen. C) Carbon dioxide. D) Argon. Show Answer Correct Answer: C) Carbon dioxide. 21. Hydrolysis is defined as: A) The process by which animals take in food. B) The chemical breakdown of a compound due to reaction with water, such as the digestion of starch into glucose. C) The passive diffusion of water across membranes. D) The measurement of acidity or basicity from 0 to 14. Show Answer Correct Answer: B) The chemical breakdown of a compound due to reaction with water, such as the digestion of starch into glucose. 22. Acid rain has a pH LESS than A) 6. B) 7. C) 8. D) 3. Show Answer Correct Answer: A) 6. 23. Which of the following has the highest concentration of theobromine? A) White chocolate. B) Milk chocolate. C) Semi-sweet chocolate. D) Unsweetened cocoa powder. Show Answer Correct Answer: D) Unsweetened cocoa powder. 24. What is the primary reason for the increase in greenhouse gas emissions? A) Increased use of renewable energy. B) Deforestation and burning of fossil fuels. C) Expansion of natural habitats. D) Decrease in industrial activities. Show Answer Correct Answer: B) Deforestation and burning of fossil fuels. 25. A substance that speeds up a chemical reaction without being used up in the reaction A) Catalyst. B) Converter. C) Inhibitor. D) Reactant. Show Answer Correct Answer: A) Catalyst. ← 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