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 18 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part Ii) Chapter 14 Environmental Chemistry Quiz 18 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Identify a FALSE statement about polychlorinated dibenzo compounds. A) They are pyrogenic. B) They have many chlorine atoms attached. C) They are geogenic. D) They are xenobiotic. Show Answer Correct Answer: C) They are geogenic. 2. The structure that covers the roots to help them get the most contact with water in the soil is called: A) Root hairs. B) Root epidermis. C) Root cortex. D) Root cap. Show Answer Correct Answer: A) Root hairs. 3. What is the significance of the Paris Agreement in addressing greenhouse gas emissions? A) The Paris Agreement focuses on promoting fossil fuel consumption. B) The Paris Agreement has no impact on global warming. C) The Paris Agreement aims to limit global warming, requires countries to set climate targets, and promotes transparency and accountability. D) The Paris Agreement encourages countries to increase greenhouse gas emissions. Show Answer Correct Answer: C) The Paris Agreement aims to limit global warming, requires countries to set climate targets, and promotes transparency and accountability. 4. What is the relationship between nicotine and adrenaline? A) Nicotine reduces the effect of adrenaline. B) Nicotine removes adrenaline. C) Nicotine triggers the release of adrenaline. D) Nicotine is a substitute for adrenaline. Show Answer Correct Answer: C) Nicotine triggers the release of adrenaline. 5. The study of how humans interact with the environment ..... A) Environmental science. B) Astronomy. C) Meteorology. D) Geology. Show Answer Correct Answer: A) Environmental science. 6. A device that encourages complete oxidation during combustion reactions A) Flamethrower. B) Catalytic converter. C) Enzyme. D) Scrubber. Show Answer Correct Answer: B) Catalytic converter. 7. Below are examples of ores and minerals in combined state, except A) ZnO. B) PbS. C) Fe$_{2}$O$_{3}$. D) Pt. Show Answer Correct Answer: D) Pt. 8. Clear-looking lake water can still be unsafe because A) Some pollutants have strong colors that make water appear clear. B) Clarity always means high dissolved oxygen. C) It may contain acid or harmful chemicals that prevent life from thriving. D) Clear water has no microorganisms. Show Answer Correct Answer: C) It may contain acid or harmful chemicals that prevent life from thriving. 9. In an experiment, a scientist measures the pH of rainwater in an industrial area and finds it to be 4.5. What does this indicate about the rainwater? A) It is highly acidic. B) It is slightly acidic. C) It is basic. D) It is neutral. Show Answer Correct Answer: A) It is highly acidic. 10. Utilizing existing knowledge base for reducing chemical hazards along with developmental activities is the foundation of A) Collection and disposal. B) Waste management. C) Sustainable development. D) Green chemistry. Show Answer Correct Answer: D) Green chemistry. 11. Students investigated:'Does the temperature of the hydrochloric acid affect the time taken for its reaction with magnesium?'What is the independent variable in this investigation? A) Yes. B) Time. C) Temperature. D) Concentration. E) Surface area. Show Answer Correct Answer: C) Temperature. 12. What is acid rain primarily caused by? A) Natural evaporation. B) SO2 and NOx emissions. C) Plant respiration. D) Water vapor condensation. Show Answer Correct Answer: B) SO2 and NOx emissions. 13. Which of the following is the most common source of carbon monoxide (CO): A) Solar panels. B) Swamp gases. C) Vehicle emissions. D) Industrial sources. Show Answer Correct Answer: C) Vehicle emissions. 14. Which of the following is a sample of active transport? A) Movement of water across cell membrane. B) Plant root absorbing mineral ions from the soil. C) Uptake of water by the root hair of the plant. D) Movement of oxygen from alveoli into red blood cell. Show Answer Correct Answer: B) Plant root absorbing mineral ions from the soil. 15. Renewable energy includes: A) Coal. B) Diesel. C) Wind. D) Petrol. Show Answer Correct Answer: C) Wind. 16. What does pH measure in a solution? A) The mass of dissolved solids per liter. B) The amount of oxygen present in air. C) How acidic or basic water or other solutions are, ranging from 0 to 14. D) The concentration of nitrogen oxides. Show Answer Correct Answer: C) How acidic or basic water or other solutions are, ranging from 0 to 14. 17. Acid deposition includes: A) Only rainfall. B) Both wet and dry forms of acidic pollutants. C) Only gaseous pollutants. D) Snowfall only. Show Answer Correct Answer: B) Both wet and dry forms of acidic pollutants. 18. An undesired change in air, water, or soil that adversely (badly) affects the health, survival, or activities of any organism. A) Loss of biodoversity. B) Pollution. C) Resource depletion. D) None of the above. Show Answer Correct Answer: B) Pollution. 19. When cold water containing temporary hardness is heated, an insoluble substance precipitates out of the water. What is the formula for this insoluble precipitate? A) CaCO$_{3}$. B) CO$_{2 }$. C) CaCO3. D) H$_{2}$O. Show Answer Correct Answer: A) CaCO$_{3}$. 20. Clean Air Act amendments (U.S., 1990) targeted reduction of: A) CO2. B) SO2 and NOx. C) CH4. D) H2S. Show Answer Correct Answer: B) SO2 and NOx. 21. What is the source of sulfur? A) The source of sulfur is bananas and apples. B) The source of sulfur is outer space. C) The source of sulfur is underwater sea creatures. D) The source of sulfur is volcanic eruptions, industrial processes, and natural gas production. Show Answer Correct Answer: D) The source of sulfur is volcanic eruptions, industrial processes, and natural gas production. 22. How does deforestation contribute to climate change? A) Deforestation decreases atmospheric CO2 levels and increases carbon absorption. B) Deforestation has no impact on climate change or carbon levels. C) Deforestation contributes to climate change by increasing atmospheric CO2 levels and reducing carbon absorption. D) Deforestation helps to cool the planet by increasing tree cover. Show Answer Correct Answer: C) Deforestation contributes to climate change by increasing atmospheric CO2 levels and reducing carbon absorption. 23. A solution with a pH of 8.6 would be a(n) A) Acid. B) Base. C) Neutral. D) Acid and Base. Show Answer Correct Answer: B) Base. 24. Many monomers connected together creates a ..... A) Product. B) Polysaccharide. C) Monochain. D) Polymer. Show Answer Correct Answer: D) Polymer. 25. Identify a method to decrease the dissolving rate of a solution: A) Decrease the temperature. B) Stir the solution. C) Add KE. D) Increase the temperature. Show Answer Correct Answer: A) Decrease the temperature. 26. T/F:Pollutants can travel through both the air (wind) and water. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 27. Stainless steel is an alloy commonly used for cutlery primarily because it ..... A) Is lighter than mild steel. B) Is magnetic. C) Does not corrode. D) Is a pure compound. Show Answer Correct Answer: C) Does not corrode. 28. What is the principal source of contamination of surface water and groundwater? A) Urban runoff. B) Agricultural runoff. C) Natural sources. D) Industrial sources. Show Answer Correct Answer: B) Agricultural runoff. 29. T/F:Water vapor is a greenhouse gas A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 30. In electrolytic cells, oxidation happens at the A) Voltmeter. B) Salt bridge. C) Cathode. D) Anode. Show Answer Correct Answer: C) Cathode. 31. Which of the following is a harmful effect of smog? A) Increased oxygen levels. B) Cooling of the atmosphere. C) Improved air quality. D) Respiratory diseases. Show Answer Correct Answer: D) Respiratory diseases. 32. A process in which one or more atoms of a substance rearrange to form one or more new substances A) Chemical reaction. B) Nuclear fusion. C) Evaporation. D) Physical change. Show Answer Correct Answer: A) Chemical reaction. 33. Apa saja metode umum untuk menilai kontaminasi tanah? A) Monitoring kualitas udara. B) Metode umum untuk menilai kontaminasi tanah termasuk pengambilan sampel tanah dan analisis laboratorium, teknik penyaringan lapangan, dan metode geofisika. C) Pemeriksaan visual tanaman. D) Penguji kualitas air. Show Answer Correct Answer: B) Metode umum untuk menilai kontaminasi tanah termasuk pengambilan sampel tanah dan analisis laboratorium, teknik penyaringan lapangan, dan metode geofisika. 34. Phosphate can get into water because of what substances causing water pollution? A) Cleaning products. B) Fertilizer. C) Sewage. D) All of these options. Show Answer Correct Answer: D) All of these options. 35. In the reaction HCl + NaOH $\rightarrow$ H2O + NaCl, what role does NaOH play? A) Water. B) Base. C) Acid. D) Salt. Show Answer Correct Answer: B) Base. 36. The practice of growing, breeding, and caring for plants and animals that are used for food, clothing, housing, etc. A) Farming. B) Horticulture. C) Agriculture. D) Zoology. Show Answer Correct Answer: C) Agriculture. 37. What does phosphorus do to help a growing plant? A) Leaf growth. B) Root growth. C) Fruit growth. D) None of the above. Show Answer Correct Answer: B) Root growth. 38. Algae blooms are an abundance of harmful organisms caused by ..... A) Too much nutrients from agricultural runoff. B) Water that is too cold. C) Water that is too warm. D) Too much sunlight. Show Answer Correct Answer: A) Too much nutrients from agricultural runoff. 39. Which region is most affected by climate change? A) Deserts. B) Polar regions. C) Rainforests. D) Grasslands. Show Answer Correct Answer: B) Polar regions. 40. Describe the effects of heavy metals on aquatic ecosystems. A) Heavy metals improve water quality and clarity in aquatic systems. B) Heavy metals negatively impact aquatic ecosystems by causing toxicity, disrupting biological functions, and bioaccumulating in the food chain. C) Heavy metals have no effect on aquatic life and ecosystems. D) Heavy metals enhance aquatic biodiversity and promote growth. Show Answer Correct Answer: B) Heavy metals negatively impact aquatic ecosystems by causing toxicity, disrupting biological functions, and bioaccumulating in the food chain. 41. In the law of conservation of energy: A) Energy can be created but not destroyed. B) Energy can be destroyed but not created. C) Energy cannot be created or destroyed. D) Energy can be both created and destroyed. Show Answer Correct Answer: C) Energy cannot be created or destroyed. 42. Nutrients in rivers are usually caused by ..... A) Soil Erosion. B) Industrial Pollution. C) Pollution from oil washed off roads. D) Chemical fertilizers. Show Answer Correct Answer: D) Chemical fertilizers. 43. A chemical used to target and control grasshoppers A) Herbicide. B) Fungicide. C) Insecticide. D) Pesticide. Show Answer Correct Answer: C) Insecticide. 44. What is the main source of sulfur oxides in the air? A) Coal (fossil fuel) burning power plants. B) Burning forests and biomass. C) Motor Vehicles. D) Evaporation of VOCs. Show Answer Correct Answer: A) Coal (fossil fuel) burning power plants. 45. How does switching off unused lights help? A) Reduces electricity use. B) Stores light. C) Adds oxygen to the air. D) Increases heat. Show Answer Correct Answer: A) Reduces electricity use. 46. Deforestation contributes to greenhouse gases by A) Loss of trees that would otherwise remove carbon dioxide from the air. B) Burning wood releases carbon dioxide. C) Both are correct. D) None of the above. Show Answer Correct Answer: C) Both are correct. 47. A fertilizer plant is located in an area where the weather is dominated by northeasterly winds (winds from the northeast). The fertilizer plant will most likely have the least environmental impact on a town if the plant were located A) West of the town. B) Southwest of the town. C) East of the town. D) Northeast of the town. Show Answer Correct Answer: B) Southwest of the town. 48. An alteration of the environment is considered pollution if A) It produces a condition that is harmful to living things. B) It causes immediate harm to living things in that environment. C) The concentration of harmful chemicals is easy to detect. D) The concentration of a pollutant exceeds its LD50. Show Answer Correct Answer: A) It produces a condition that is harmful to living things. 49. What is the colour of anhydrous copper(II) sulfate? A) Blue. B) Green. C) White. D) Pink. Show Answer Correct Answer: C) White. 50. A scale that measures the acidity or alkalinity of a substance A) PH paper. B) Cabbage juice. C) PH scale. D) Richter scale. Show Answer Correct Answer: C) PH scale. 51. All of the following are important uses of Nitrogen EXCEPT: A) Fertilizer. B) Algae blooms. C) Plant growth. D) Animal growth. Show Answer Correct Answer: B) Algae blooms. 52. Why is monitoring carbon dioxide and ozone levels worldwide important? A) They have no impact on climate and health. B) They influence the enhanced greenhouse effect and UV protection, affecting global warming and ozone depletion. C) They only affect local air quality near factories. D) They are useful solely for predicting rainfall. Show Answer Correct Answer: B) They influence the enhanced greenhouse effect and UV protection, affecting global warming and ozone depletion. 53. A device used in factories to reduce oxide emissions A) Scrubber. B) Cleaner. C) Converter. D) Indicator. Show Answer Correct Answer: A) Scrubber. 54. Catalytic converters reduce: A) NOx and CO. B) SO2 only. C) CO2. D) Hydrocarbons only. Show Answer Correct Answer: A) NOx and CO. 55. Long diseases are four times more in urban areas than in rural areas. This is due to the presence of A) CO2. B) Water vapour. C) N2. D) SO2. Show Answer Correct Answer: D) SO2. 56. Which of the following substances has a pH value closest to 6? A) Milk. B) Ammonia. C) Baking soda. D) Vinegar. Show Answer Correct Answer: A) Milk. 57. The gas leaked from a storage tank of the Union Carbide plant in Bhopal gas tragedy was(a) phosgene(b) methylisocyanate(c) methylamine(d) ammonia. A) B. B) C. C) A. D) D. Show Answer Correct Answer: A) B. 58. Which item is not listed as a material for the activity? A) Baking pan. B) Metal rod. C) Plastic spoon. D) Cotton balls. Show Answer Correct Answer: B) Metal rod. 59. Which of the following is a common source of air pollution? A) Hydroelectric dams. B) Wind turbines. C) Car exhaust. D) Solar panels. Show Answer Correct Answer: C) Car exhaust. 60. Which organisms are most vulnerable to toxins in the environment? A) Small fish. B) Large predators. C) Plants. D) Microorganisms. Show Answer Correct Answer: B) Large predators. ← 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