This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Chemistry Part Ii > 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 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. When molecules move from an area of higher concentration to lower concentration this is called: A) Diffusion. B) Osmosis. C) Cellular respiration. D) Active transport. Show Answer Correct Answer: A) Diffusion. 2. How do photochemical oxidants form?I. From lightningII. From reactions of SO$_{2}$III. From reactions of NO$_{2}$IV. From reactions with NO A) I, II and III. B) I, III and IV. C) II, III and IV. D) I, II, III and IV. Show Answer Correct Answer: B) I, III and IV. 3. Much of the power generated in Alberta comes from coal-fired plants. The burning of coal is the leading cause of ..... A) Carbon dioxide pollution. B) Nitrogen dioxide pollution. C) Sulphur dioxide pollution. D) All of the above. Show Answer Correct Answer: D) All of the above. 4. Soil acidification leads to: A) Increased plant growth. B) Decreased availability of toxic metals. C) Increased solubility of Al3+. D) Neutral soil pH. Show Answer Correct Answer: C) Increased solubility of Al3+. 5. ..... is a measure of acid-neutralizing ions in natural waters. A) Acid neutralizing capacity. B) Buffering capacity. C) Alkalinity. D) Tyndall effect. Show Answer Correct Answer: C) Alkalinity. 6. How can advancements in technology help combat global warming and climate change? A) By providing sustainable solutions. B) By ignoring environmental concerns. C) By increasing carbon emissions. D) By depleting natural resources. Show Answer Correct Answer: A) By providing sustainable solutions. 7. The photochemical somg can be suppressed by A) Nitrogen oxides. B) Formaldehyde. C) Radical traps. D) Hydrocarbons. Show Answer Correct Answer: C) Radical traps. 8. Which age group is most vulnerable to acid deposition effects? A) Children and elderly. B) Middle-aged adults. C) Teenagers only. D) None. Show Answer Correct Answer: A) Children and elderly. 9. Complete the following sentence "Hard water is water that A) Forms a lather easily with water. B) Does not form a lather easily with water. C) All the above. D) None of the above. Show Answer Correct Answer: B) Does not form a lather easily with water. 10. When a lake has a long retention time, it ..... I. Does not flush very oftenII. It has large volumeIII. It has high outflow IV. It allows pollutants to accumulate A) I, II, III, IV. B) I, II, III. C) I, II, IV. D) II, III, IV. Show Answer Correct Answer: C) I, II, IV. 11. Water in a particular lake has a pH of 5.2. Calcium carbonate is added to the lake water. The purpose of treating the lake water with calcium carbonate is to A) Decrease the acidic nature of the lake water. B) Bring the pH of the lake water closer to 7.0. C) Decrease the basic nature of the lake water. D) Bring the pH of the lake water closer to zero. Show Answer Correct Answer: B) Bring the pH of the lake water closer to 7.0. 12. When magnesium reacts with copper sulphate, there are two products. What are they? A) Magnesium and Copper. B) Magnesium Sulphate and Copper. C) Magnesium Sulphate and Copper Sulphate. D) Magnesium and Copper Sulphate. Show Answer Correct Answer: B) Magnesium Sulphate and Copper. 13. Which index is used to measure air pollution levels? A) Air Quality Index (AQI). B) PH scale. C) Richter scale. D) Decibel scale. Show Answer Correct Answer: A) Air Quality Index (AQI). 14. Which pair of pollutants mainly contribute to smog and acid rain from combustion and industrial processes? A) Carbon monoxide and methane. B) Sulfur dioxide and nitrogen oxides. C) Ozone and water vapor. D) Phosphorus and ammonia. Show Answer Correct Answer: B) Sulfur dioxide and nitrogen oxides. 15. A dangerous pesticide, no longer in the USA, used to kill insects. A) Off. B) DDT. C) Antibacterial soap. D) Raid. Show Answer Correct Answer: B) DDT. 16. The amount of charge carried by one mole of electrons is known as the faraday. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 17. The gas harmful to humans that is colorless and odorless and often produced by cars is called ..... A) Carbon monoxide. B) Carbon dioxide. C) Nitrogen. D) Methane. Show Answer Correct Answer: A) Carbon monoxide. 18. Includes rice, bread, and cereals. A) Carbohydrates. B) Protein. C) Vitamins. D) Fats. E) Minerals. Show Answer Correct Answer: A) Carbohydrates. 19. What is used to explain how carbon moves through the atmosphere, Earth and living organisms? A) The water cycle. B) The nitrogen cycle. C) The carbon cycle. D) None of the above. Show Answer Correct Answer: C) The carbon cycle. 20. The smog is essentially caused by the presence of(a) O$_{2}$ and O$_{3}$(b) O$_{2 }$and N$_{2}$(c) oxides of sulphur and nitrogen(d) O$_{3}$ and N$_{2}$. A) C. B) B. C) A. D) D. Show Answer Correct Answer: A) C. 21. What was used as a solvent for dry cleaning earlier? A) Cl2C=CCl2. B) H2O2. C) CO2. D) H2O. Show Answer Correct Answer: A) Cl2C=CCl2. 22. Flame colour for lithium ions A) Blue. B) Green. C) Yellow. D) Crimson. Show Answer Correct Answer: D) Crimson. 23. What are the primary greenhouse gases contributing to climate change? A) Hydrogen, helium, neon, and argon gases. B) Ozone, sulfur dioxide, carbon monoxide, and water vapor. C) Benzene, toluene, xylene, and acetylene. D) Carbon dioxide, methane, nitrous oxide, and fluorinated gases. Show Answer Correct Answer: D) Carbon dioxide, methane, nitrous oxide, and fluorinated gases. 24. Stored energy in water behind a dam falls and changes into mechanical energy that turns a turbine that turns coils in a generator that produces electrical energy. What is this? A) Fossil Fuel Power Plant. B) Nuclear Power Plant. C) Nonrenewable Power Plant. D) Hydroelectric Power Plant. Show Answer Correct Answer: D) Hydroelectric Power Plant. 25. How many percent of nitrogen in clean dry air? A) The percentage of nitrogen in clean dry air is 90%. B) The percentage of nitrogen in clean dry air is 50%. C) The percentage of nitrogen in clean dry air is approximately 78%. D) The percentage of nitrogen in clean dry air is 30%. Show Answer Correct Answer: C) The percentage of nitrogen in clean dry air is approximately 78%. 26. Which of the following are examples of secondary pollutants? A) Carbon Dioxide and Smog. B) Acid Rain and Ozone. C) Ozone and PM. D) Acid Rain and Carbon Dioxide. Show Answer Correct Answer: B) Acid Rain and Ozone. 27. An indicator paper that turns blue when exposed to a base A) Universal indicator paper. B) PH paper. C) Litmus paper. D) Cabbage paper. Show Answer Correct Answer: C) Litmus paper. 28. Which metal is less reactive than carbon? A) Iron. B) Aluminium. C) Calcium. D) Potassium. Show Answer Correct Answer: A) Iron. 29. John has a special substance that has a pH of 7. What does this mean? A) It is an acid. B) It is very toxic. C) It is neutral. D) It is a base. Show Answer Correct Answer: C) It is neutral. 30. What is an example of energy-efficient transport? A) Petrol SUV. B) Old diesel bus. C) Electric train. D) Private jet. Show Answer Correct Answer: C) Electric train. 31. Which of the following concentrations is higher? (ppm= part per million) A) 2.2 ppm. B) 20.2 ppm. C) 200 ppm. D) 0.2 ppm. Show Answer Correct Answer: C) 200 ppm. 32. What is the effect of global warming on sea levels? A) Sea levels decrease. B) Sea levels rise. C) No change. D) Sea levels fluctuate randomly. Show Answer Correct Answer: B) Sea levels rise. 33. What harmful health effects do scientist say that the UV radiation that passes through our "shield" will cause? A) Increase in skin cancer. B) Immune deficiencies. C) Cataracts. D) All of the answers. Show Answer Correct Answer: D) All of the answers. 34. Which action conserves resources? A) Recycling metal. B) Driving short distances. C) Buying bottled water. D) Using single-use plastics. Show Answer Correct Answer: A) Recycling metal. 35. What does NOT happen on polar stratospheric clouds? A) The trapping of Cl radicals. B) The depletion of N$_{2}$O$_{5}$. C) The formation of nitric acid. D) The release of Cl$_{2}$. Show Answer Correct Answer: A) The trapping of Cl radicals. 36. 1 faraday (F) equals approximately ..... coulombs (c). A) 10000. B) 16500. C) 8500. D) 96500. Show Answer Correct Answer: D) 96500. 37. Flue gas desulfurization removes: A) CO2. B) SO2. C) NO2. D) O3. Show Answer Correct Answer: B) SO2. 38. Which of the following is contributing to an INCREASE in carbon dioxide in the atmosphere? A) Deforestation. B) Photosynthesis. C) Oceans. D) All of the above. E) The loss of animal species. Show Answer Correct Answer: A) Deforestation. 39. Acidic aerosols aggravate diseases such as: A) Asthma and bronchitis. B) Diabetes. C) Hypertension. D) Kidney stones. Show Answer Correct Answer: A) Asthma and bronchitis. 40. Human activities can alter chemical concentrations in ecosystems. Based on the material, what is a likely consequence of such alterations? A) Increased biodiversity due to higher pollutant levels. B) Immediate neutralization of harmful chemicals by natural processes. C) Permanent elimination of volcanic releases like sulfur dioxide. D) Pollution that harms living things. Show Answer Correct Answer: D) Pollution that harms living things. 41. How is crude oil made from dead organisms? A) Buried-compressed-heated. B) Heated and stirred. C) Eaten by larger organisms. D) None of the above. Show Answer Correct Answer: A) Buried-compressed-heated. 42. Which of the following substances is removed from natural gas during processing? A) Nitrogen. B) Hydrogen sulfide. C) Methane. D) Carbon dioxide. Show Answer Correct Answer: B) Hydrogen sulfide. 43. What is the ozone layer considered as in the stratosphere? A) Heat source. B) Protective shield from UV-light. C) Oxygen supplier. D) Air pollutant. Show Answer Correct Answer: B) Protective shield from UV-light. 44. A 0.5 L water sample from the Flow River contains 50 mg of barium. Calculate the concentration of barium in ppm. A) 0.1 ppm. B) 50 ppm. C) 0.05 ppm. D) 100 ppm. Show Answer Correct Answer: D) 100 ppm. 45. Bromothymol blue will appear yellow when mixed with A) Lemon juice. B) Baking soda. C) Distilled water. D) Drain cleaner. Show Answer Correct Answer: A) Lemon juice. 46. Which of the following is NOT one of the three major plant nutrients mentioned? A) Potassium. B) Calcium. C) Nitrogen. D) Phosphorus. Show Answer Correct Answer: B) Calcium. 47. What chemical is responsible for breaking up the ozone? A) CFCs. B) Nitrogen. C) Oxygen. D) Carbon Dioxide. Show Answer Correct Answer: A) CFCs. 48. What is the effect of an increased greenhouse effect on Earth's climate? A) Acid rain. B) Global warming. C) Ozone layer depletion. D) Global cooling. Show Answer Correct Answer: B) Global warming. 49. A rapid decrease in pH due to increased run-off in the spring A) Spring shock. B) Spring run off shock. C) Spring acid shock. D) Spring base shock. Show Answer Correct Answer: C) Spring acid shock. 50. Which of the following is an example of an endothermic reaction? A) Cellular respiration. B) Combustion of wood. C) Burning of fossil fuels. D) Photosynthesis. Show Answer Correct Answer: D) Photosynthesis. 51. What are the main sources of arsenic exposure? A) Mining and smelting of gold. B) Burning of coal. C) Leachate from abandoned gold mines. D) All of the above. Show Answer Correct Answer: D) All of the above. 52. Anhydrous cobalt(II) chloride can be used to test presence of water. What is the colour change of the cobalt(II) chloride paper when there is water? A) White to blue. B) Blue to pink. C) Blue to white. D) Pink to blue. Show Answer Correct Answer: B) Blue to pink. 53. Rock that forms when pressure and temperature change existing rock. A) Sedimentary Rock. B) Metamorphic Rock. C) Rock Cycle. D) Igneous Rock. Show Answer Correct Answer: B) Metamorphic Rock. 54. Distilled water does not contain any insoluble impurities, soluble impurities and microorganisms. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 55. BOD stands for(a) Biochemical Oxidation Demand(b) Biological Oxygen Demand(c) Biochemical Oxygen Demand(d) Bacterial Oxidation Demand. A) C. B) B. C) D. D) A. Show Answer Correct Answer: A) C. 56. The amount of toxin needed to poison an animal is often dependent on what factor? A) Weight of the animal. B) Time of day. C) An animals normal eating habits. D) The age of the animal. Show Answer Correct Answer: A) Weight of the animal. 57. The smog is essentially caused by the presence of A) O2 and O3. B) O2 and N2. C) Oxides of sulphur and nitrogen. D) O3 and N2. Show Answer Correct Answer: C) Oxides of sulphur and nitrogen. 58. What is the cleanup process officially used by? A) The Red Cross. B) The Superfund. C) The World Health Organization. D) The Environmental Protection Agency. Show Answer Correct Answer: B) The Superfund. 59. Which of the following is a component of environmental pollution? A) Thermodynamics. B) Air pollution. C) Electrochemistry. D) Quantum mechanics. Show Answer Correct Answer: B) Air pollution. 60. Overtime, the water in a river will dissolve a portion of the rocks on the bottom of the riverbed. The type of weathering that causes the rock to dissolve is? A) Physical weathering. B) Chemical weathering. C) All the above. D) None of the above. Show Answer Correct Answer: B) Chemical weathering. ← PreviousNext →Related QuizzesScience QuizzesClass 11 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 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books