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 20 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part Ii) Chapter 14 Environmental Chemistry Quiz 20 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The following question was posed to the residents of a small community: "Are you willing to have a 3% tax increase to pay for an upgrade to the water treatment facility?" This question reflects which viewpoint? A) Scientific. B) Technological. C) Economic. D) Political. Show Answer Correct Answer: D) Political. 2. Batteries and accumulators are examples of which cells? A) Galvanic. B) Electrolytic. C) Anode. D) Electron. Show Answer Correct Answer: A) Galvanic. 3. What two products does neutralization produce? A) Neutralization produces oxygen and carbon dioxide. B) Neutralization produces nothing. C) Neutralization produces sugar and salt. D) Neutralization produces water and salt. Show Answer Correct Answer: D) Neutralization produces water and salt. 4. In the context of environmental chemistry, what does the term 'biodegradable' mean? A) A substance that can be recycled indefinitely. B) A substance that is resistant to chemical breakdown. C) A substance that is toxic to living organisms. D) A substance that can be broken down by natural processes. Show Answer Correct Answer: D) A substance that can be broken down by natural processes. 5. What is DDT among the following? A) Biodegradable pollutant. B) A fertilizer. C) Green house gas. D) Non-biodegradable pollutant. Show Answer Correct Answer: D) Non-biodegradable pollutant. 6. Which pollutants cause ozone layer depletion? A) Methane. B) Carbon dioxide. C) Nitrogen. D) Chlorofluorocarbons (CFCs). Show Answer Correct Answer: D) Chlorofluorocarbons (CFCs). 7. What is the main principle of cleaner production? A) Atom Economy. B) Ozone Depletion. C) Greenhouse Effect. D) Carbon Footprint. Show Answer Correct Answer: A) Atom Economy. 8. Forest soil recovery after acid rain requires: A) Re-liming and reforestation. B) Fire clearing. C) All the above. D) None of the above. Show Answer Correct Answer: A) Re-liming and reforestation. 9. Why might a lake that appears clear still be unsafe? A) Clear water has neutral pH by definition. B) Polluted lakes can appear clear but cannot support life due to factors like acid rain or harmful chemicals. C) Clear lakes never contain microorganisms. D) Clarity always indicates high dissolved oxygen. Show Answer Correct Answer: B) Polluted lakes can appear clear but cannot support life due to factors like acid rain or harmful chemicals. 10. How does climate change affect sea levels? A) Climate change causes sea levels to rise due to melting ice and thermal expansion of water. B) Sea levels decrease due to increased rainfall from climate change. C) Climate change causes sea levels to rise only in polar regions. D) Climate change has no effect on sea levels. Show Answer Correct Answer: A) Climate change causes sea levels to rise due to melting ice and thermal expansion of water. 11. The increase of concentration of a chemical or elements as it moves up the food chain ..... A) Phytoremediation. B) Bioremediation. C) Biomagnification. D) Photolysis. Show Answer Correct Answer: C) Biomagnification. 12. A substance with a high number of hydronium ions when dissolved in water A) Acid. B) Base. C) Salt. D) Neutral compound. Show Answer Correct Answer: A) Acid. 13. Which of the following is an effect of global warming? A) Flooding of low lying coastal land. B) Longer days in the summer. C) Longer days in the summer. D) None of the above. Show Answer Correct Answer: A) Flooding of low lying coastal land. 14. Nutrients are classified into two major groups, A) Organic and inorganic. B) Lipids and enzymes. C) Vitamins and minerals. D) Macrominerals and trace elements. Show Answer Correct Answer: A) Organic and inorganic. 15. Which of the following pollutants contributes to the formation of smog? A) Nitrogen oxides. B) Helium. C) Hydrogen. D) Oxygen. Show Answer Correct Answer: A) Nitrogen oxides. 16. Which among the following is NOT a constituent of photochemical smog? A) SO$_{2}$. B) Formaldehyde. C) Peroxyacetyl nitrate (PAN). D) Acrolein. Show Answer Correct Answer: A) SO$_{2}$. 17. Carbohydrates provide the body with ..... ? A) Sweetness. B) Dietary fibre. C) Energy. D) Water. Show Answer Correct Answer: C) Energy. 18. According to the pH scale information, which statement is correct? A) Acids have pH greater than 7; bases have pH less than 7. B) Neutral solutions have pH of 7; acids are below 7 and bases are above 7. C) Neutral solutions have pH 0; acids and bases both center around pH 14. D) Every single pH unit change represents a twofold change in acidity or basicity. Show Answer Correct Answer: B) Neutral solutions have pH of 7; acids are below 7 and bases are above 7. 19. How does runoff from fertilizers and other pollutants affect our water supply? A) It improves water quality by adding nutrients. B) It has no effect on water quality. C) It increases the water supply. D) It contaminates water with harmful chemicals. Show Answer Correct Answer: D) It contaminates water with harmful chemicals. 20. Which air pollutants are monitored because they can cause smog and acid rain? A) Carbon monoxide and methane. B) Sulfur dioxide and nitrogen oxides. C) Ozone and helium. D) Water vapor and argon. Show Answer Correct Answer: B) Sulfur dioxide and nitrogen oxides. 21. Building erosion from acid rain leads to: A) Increased stability. B) Waterproofing. C) Resistance to wind. D) Structural weakening. Show Answer Correct Answer: D) Structural weakening. 22. Which of these materials is often recycled? A) Sand. B) Coal. C) Aluminium. D) Wood ash. Show Answer Correct Answer: C) Aluminium. 23. What is fertilizer labeled with? A) 3 Numbers. B) 5 Numbers. C) Nothing. D) 2 Numbers. Show Answer Correct Answer: A) 3 Numbers. 24. What do herbicides specifically target? A) Insects. B) Fungi. C) Bacteria. D) Weeds. Show Answer Correct Answer: D) Weeds. 25. How would the planet be without the greenhouse effect A) It's to hot out side. B) There would be a big climate change and global warning. C) Without the greenhouse effect earths average temperature would be-18 and covered in ice. D) You are my fire. Show Answer Correct Answer: C) Without the greenhouse effect earths average temperature would be-18 and covered in ice. 26. Which is the highest concentration of lead? A) 5 ppm. B) 0.5 ppb. C) 5 ppb. D) 0.5 ppm. Show Answer Correct Answer: A) 5 ppm. 27. Immediate or short-term harm effects after a single exposure or short period of exposure is called ..... A) Diluted Toxicity. B) Acute Toxicity. C) Chronic Toxicity. D) Accumulated Toxicity. Show Answer Correct Answer: B) Acute Toxicity. 28. Which layer of the atmosphere has the highest temperatures? A) Stratosphere. B) Thermosphere. C) Exosphere. D) Troposphere. Show Answer Correct Answer: B) Thermosphere. 29. These are needed for building and repairing tissues and supporting immune function. A) Carbohydrates. B) Lipids. C) Proteins. D) Nucleic Acids. Show Answer Correct Answer: C) Proteins. 30. Which of these processes releases carbon dioxide? A) Dissolving in sea water. B) Combustion of fossil fuels. C) Plants being eaten by animals. D) None of the above. Show Answer Correct Answer: B) Combustion of fossil fuels. 31. The maximum prescribed concentration of copper in drinking water is(a) 0.05 ppm(b) 3 ppm(c) 5 ppm(d) 0.5 ppm A) D. B) A. C) C. D) B. Show Answer Correct Answer: D) B. 32. Fine sulfate aerosols can cause: A) Skin burns. B) Respiratory irritation and asthma. C) Heart disease. D) Visual problems only. Show Answer Correct Answer: B) Respiratory irritation and asthma. 33. Which of the following substances is considered a strong base? A) Lemon juice. B) Distilled water. C) Milk. D) Drain cleaner. Show Answer Correct Answer: D) Drain cleaner. 34. What is the difference between acute and chronic toxicity? A) Acute toxicity means it's not toxic, and chronic toxicity means it's very toxic. B) Acute toxicity is very fast, and chronic toxicity means it's very slow. C) There is absolutely no different-just different names. D) Acute toxicity means natural death, chronic toxicity means death by complication. Show Answer Correct Answer: B) Acute toxicity is very fast, and chronic toxicity means it's very slow. 35. Pollution of automobile exhausts that affects nervous system and produces mental diseases is A) Nitric oxide. B) Lead. C) Sulphur dioxide. D) Mercury. Show Answer Correct Answer: B) Lead. 36. Which will dissolve faster? Crushed table salt or a cube of table salt. Assume they have an equal mass. A) Crushed table salt. B) Crystal of table salt. C) All the above. D) None of the above. Show Answer Correct Answer: A) Crushed table salt. 37. What is the main environmental concern associated with the use of nitrogen-based fertilizers? A) Deforestation. B) Soil erosion. C) Water pollution. D) Air pollution. Show Answer Correct Answer: C) Water pollution. 38. Gases such as water vapour and carbon dioxide that trap heat near Earth are known as ..... A) Blanket gases. B) Warming gases. C) Proxy gases. D) Greenhouse gases. Show Answer Correct Answer: D) Greenhouse gases. 39. This atmospheric compound is critical to the planet in its protection against UV radiation, but when found close to the ground is part of photochemical smog that can cause serious health problems. A) Stratospheric ozone. B) Carbon monoxide. C) Particulate matter. D) Tropospheric ozone. Show Answer Correct Answer: D) Tropospheric ozone. 40. Any undesired change in air, water, or soil quality that has negative effects on the living things around it is called A) Sustainability. B) Environmental science. C) Pollution. D) Ecological footprint. Show Answer Correct Answer: C) Pollution. 41. Which of these increases your carbon footprint? A) Long hot showers. B) Cycling. C) Planting trees. D) Using solar panels. Show Answer Correct Answer: A) Long hot showers. 42. What gas is always produced when a metal reacts with water? A) Hydrogen. B) Carbon Monoxide. C) Carbon Dioxide. D) Oxygen. Show Answer Correct Answer: A) Hydrogen. 43. Electromagnetic energy enters and heat leaves A) Closed system. B) Open system. C) Isolated system. D) Adiabatic system. Show Answer Correct Answer: A) Closed system. 44. All are used in treatment of phosphorous poisoning except A) KMnO4. B) CuSO4. C) Vitamin K. D) Castor Oil. Show Answer Correct Answer: D) Castor Oil. 45. Which process is primarily responsible for the depletion of the ozone layer? A) Respiration. B) Release of chlorofluorocarbons (CFCs). C) Photosynthesis. D) Combustion of fossil fuels. Show Answer Correct Answer: B) Release of chlorofluorocarbons (CFCs). 46. Which oxides are known to contribute to the greenhouse effect and form acids when reacting with moisture in the air? A) Oxides of carbon, nitrogen, and sulfur. B) Oxides of hydrogen and oxygen. C) Oxides of nitrogen and phosphorus. D) Oxides of sulfur and phosphorus. Show Answer Correct Answer: A) Oxides of carbon, nitrogen, and sulfur. 47. AMDAL pertama kali diterapkan di dunia melalui NEPA (1969). Dampak historis dari kebijakan ini bagi negara lain adalah ..... A) Negara-negara melarang pembangunan infrastruktur besar. B) Negara-negara meniru prinsip penilaian dampak sebelum pembangunan. C) Negara-negara menjadi wajib membangun industri kimia. D) Negara diwajibkan menggunakan metode spektrofotometri dalam AMDAL. Show Answer Correct Answer: B) Negara-negara meniru prinsip penilaian dampak sebelum pembangunan. 48. An ..... is when algae grows exponentially due to fertilizer runoff. A) Plant bloom. B) Algal bloom. C) Turbidity. D) Anoxic conditions. Show Answer Correct Answer: B) Algal bloom. 49. Why is H2O2 used for bleaching clothes in the process of laundary? A) Gives better result. B) Reduces waste. C) Makes use of lesser amount of water. D) Both A and C. Show Answer Correct Answer: D) Both A and C. 50. Baja karbon rendah memiliki kadar karbon hingga ..... A) 0, 30%. B) 0, 50%. C) 0, 15%. D) 0, 70%. Show Answer Correct Answer: C) 0, 15%. 51. Which ore is used to extract aluminium? A) Haematite. B) Bauxite. C) Galena. D) Magnetite. Show Answer Correct Answer: B) Bauxite. 52. What is the primary purpose of scrubbers in industrial settings as described? A) To reduce sulfur dioxide emissions by converting it into useful products like gypsum. B) To capture carbon monoxide from vehicles. C) To increase dissolved oxygen in rivers. D) To measure pH in wastewater. Show Answer Correct Answer: A) To reduce sulfur dioxide emissions by converting it into useful products like gypsum. 53. Neutral particle in the nucleus of an atom A) Electron. B) Positron. C) Proton. D) Neutron. Show Answer Correct Answer: D) Neutron. 54. Apa tujuan dari Undang-Undang Air Bersih? A) Untuk menghilangkan semua regulasi air di AS. B) Untuk mempromosikan pembuangan limbah industri ke sungai. C) Untuk meningkatkan harga air bagi konsumen. D) Untuk mengatur dan melindungi kualitas air di Amerika Serikat. Show Answer Correct Answer: D) Untuk mengatur dan melindungi kualitas air di Amerika Serikat. 55. Acid rain decreases soil fertility by: A) Leaching basic cations (Ca2+, Mg2+). B) Increasing nitrogen levels. C) Adding phosphorus. D) Forming humus. Show Answer Correct Answer: A) Leaching basic cations (Ca2+, Mg2+). 56. Principles or standards we hold important A) Preferences. B) Habits. C) Values. D) Rules. Show Answer Correct Answer: C) Values. 57. A substance that has a pH value of more than 7 A) Acid. B) Indicator. C) Water. D) Base. Show Answer Correct Answer: D) Base. 58. In an experiment to measure the acidity of rainwater, which of the following pH values would indicate the most acidic sample? A) PH 9. B) PH 3. C) PH 7. D) PH 5. Show Answer Correct Answer: B) PH 3. 59. Which amongst the following is a protoplasmic poison A) Iodine. B) Powdered glass. C) Lead. D) None of the above. Show Answer Correct Answer: A) Iodine. 60. Which of these is NOT a part of the photochemical smog? A) Sulphur Dioxide. B) Hydrocarbons. C) Nitrogen oxides. D) None of the above. Show Answer Correct Answer: A) Sulphur Dioxide. ← 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