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 2 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part Ii) Chapter 14 Environmental Chemistry Quiz 2 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which part of the carbon cycle involves sunlight? A) Combustion. B) Feeding. C) Respiration. D) Photosynthesis. Show Answer Correct Answer: D) Photosynthesis. 2. Iron nails + copper oxide = A) Magic. B) Iron nails + copper oxide. C) Iron oxide + copper. D) Iron oxide + copper oxide. Show Answer Correct Answer: C) Iron oxide + copper. 3. Dalam konteks kimia lingkungan, AMDAL berfungsi sebagai "pemeriksaan kesehatan" lingkungan karena ..... A) Mengukur reaksi kimia industri setelah proyek selesai. B) Mengganti seluruh proses laboratorium. C) Memprediksi perubahan lingkungan sebelum kegiatan dimulai. D) Hanya mengevaluasi dampak sosial tanpa analisis kimia. Show Answer Correct Answer: C) Memprediksi perubahan lingkungan sebelum kegiatan dimulai. 4. An organic nutrient composed of a chain of amino acids A) Protein. B) Carbohydrate. C) Lipid. D) Vitamin. Show Answer Correct Answer: A) Protein. 5. Active Transport requires what to happen? A) Light. B) Water. C) Nothing. D) Energy. Show Answer Correct Answer: D) Energy. 6. What is a benefit of recycling plastics? A) Waste reduction. B) Higher emissions. C) Energy loss. D) Air pollution. Show Answer Correct Answer: A) Waste reduction. 7. Water regulations usually start around A) Parts per ten. B) Parts per hundred. C) Parts per thousand. D) Parts per million. Show Answer Correct Answer: D) Parts per million. 8. Water that has been treated at wastewater treatment plants is called A) Fluent. B) Sewage. C) Waste water. D) Effluent. Show Answer Correct Answer: D) Effluent. 9. Which of these is a fuel that can be obtained from crude oil? A) Diesel. B) Hydrogen. C) Wood. D) None of the above. Show Answer Correct Answer: A) Diesel. 10. What is the primary cause of the greenhouse effect in Earth's atmosphere? A) Carbon dioxide (CO2). B) Nitrogen (N2). C) Oxygen (O2). D) Argon (Ar). Show Answer Correct Answer: A) Carbon dioxide (CO2). 11. What type of ecological pyramid is never inverted? A) Energy pyramid. B) Numbers pyramid. C) Biomass pyramid. D) Ecological pyramid. Show Answer Correct Answer: A) Energy pyramid. 12. The organism that indicates the water quality is a A) Biological indicator. B) Water indicator. C) Biological tester. D) Water tester. Show Answer Correct Answer: A) Biological indicator. 13. What human activity leads to acid rain? A) CFCs. B) Fertilizer use. C) Pesticide use. D) Burning fossil fuels. Show Answer Correct Answer: D) Burning fossil fuels. 14. Which of the following is NOT a stage in water treatment? A) Chlorination. B) Filtration. C) Screening. D) Evaporation. Show Answer Correct Answer: D) Evaporation. 15. The enhanced greenhouse effect is sometimes referred to as ..... A) Global warming. B) Heat waves. C) Climate. D) Temperature. Show Answer Correct Answer: A) Global warming. 16. What is one way soil pollution gets into water? A) The pollution is carried into the water by insects. B) The pollution is washed from the soil into the water by rain. C) The pollution melts during a forest fire. D) The pollution melts when sunlight hits it. Show Answer Correct Answer: B) The pollution is washed from the soil into the water by rain. 17. True or false. Acid rain caused in one country can cause problems in other nearby countries A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 18. Natural gas that contains hydrogen sulphide is called ..... A) "sour" gass. B) "sulphuric" gas. C) "poisonous" gas. D) "bitter" gas. Show Answer Correct Answer: A) "sour" gass. 19. *Fungicides would kill: A) Dandelions. B) Mosquitos. C) Aphids. D) Mushrooms. Show Answer Correct Answer: D) Mushrooms. 20. Which of the following best describes acid rain? A) Rain with a pH above 7. B) Rain with a pH below 5.6. C) Rain with a pH exactly 7. D) Rain with a pH of 10. Show Answer Correct Answer: B) Rain with a pH below 5.6. 21. Which of the following is NOT a source of protons in natural waters? A) Weathering of limestone. B) Compounds containing sulfur. C) Hydrolysis of metals with high oxidation states. D) Gases in the atmosphere that dissolve. Show Answer Correct Answer: A) Weathering of limestone. 22. Which type of chemical waste requires separate handling due to its hazard level? A) All waste can be handled together. B) Only liquid waste. C) Only solid waste. D) Radioactive waste. Show Answer Correct Answer: D) Radioactive waste. 23. Which alternative energy source reduces air pollution? A) Wind energy. B) Coal. C) Natural gas. D) Diesel. Show Answer Correct Answer: A) Wind energy. 24. The reaction SO2 + H2O $\rightarrow$ H2SO3 occurs in: A) Stratosphere. B) Cloud droplets. C) Ozone layer. D) Troposphere. Show Answer Correct Answer: D) Troposphere. 25. Dissolved oxygen levels must always be ..... to inicate good water quality A) 5ppm. B) Above 5ppm. C) Below 5ppm. D) Above 10ppm. Show Answer Correct Answer: B) Above 5ppm. 26. Modern sanitary landfills are lined with ..... to prevent ..... A) Sand, leaching. B) Clay, leaching. C) Sand, run-off. D) Clay, run-off. Show Answer Correct Answer: B) Clay, leaching. 27. The first step of the water treatment process is ..... A) Filtration. B) Flocculation. C) Disinfection. D) Sedimentation. E) Coagulation. Show Answer Correct Answer: E) Coagulation. 28. Which of these is not part of the carbon cycle? A) Respiration. B) Combustion. C) Condensation. D) Photosynthesis. Show Answer Correct Answer: C) Condensation. 29. What is the role of carbon dioxide in the greenhouse effect? A) Carbon dioxide cools the Earth's surface effectively. B) Carbon dioxide reduces heat in the atmosphere. C) Carbon dioxide contributes to the greenhouse effect by trapping heat in the atmosphere. D) Carbon dioxide has no impact on climate change. Show Answer Correct Answer: C) Carbon dioxide contributes to the greenhouse effect by trapping heat in the atmosphere. 30. Which of the following processes is primarily responsible for the breakdown of pollutants in the atmosphere? A) Photolysis. B) Hydrolysis. C) Oxidation. D) Reduction. Show Answer Correct Answer: A) Photolysis. 31. What two properties of aluminium make it suitable for aircraft and food containers, respectively? A) High density and high reactivity. B) Low density (light) and does not corrode. C) Good conductor of heat and is brittle. D) Poor conductor of electricity and is soft. Show Answer Correct Answer: B) Low density (light) and does not corrode. 32. Vehicles contribute mainly to acid rain via: A) Dust. B) SO2 emissions. C) NOx emissions. D) CO2 emissions. Show Answer Correct Answer: C) NOx emissions. 33. Which of the following is responsible for the depletion of the ozone layer in the upper strata of the atmosphere? A) Freons. B) Ferrocenes. C) Polyhalogens. D) Fullerenes. Show Answer Correct Answer: A) Freons. 34. A compound that has a pH lower than 7 is a(an) A) Neutral. B) Base. C) Acid. D) Water. Show Answer Correct Answer: C) Acid. 35. Which type of pesticide is used to kill or control insects? A) Herbicides. B) Fungicides. C) Pesticides. D) Insecticides. Show Answer Correct Answer: D) Insecticides. 36. What is bioaccumulation or biomagnification? A) Buildup of toxins in an organism. B) The total mass/amount of organisms in a given area. C) The number of different species in an area. D) None of the above. Show Answer Correct Answer: A) Buildup of toxins in an organism. 37. How much more basic is a solution that is 5 pH than 3 pH? A) 100. B) 1000. C) 2. D) 10. Show Answer Correct Answer: A) 100. 38. Smoking interferes with the lungs' ability to provide what to the rest of the body? A) Water. B) Carbon dioxide. C) Oxygen. D) Ammonia. Show Answer Correct Answer: C) Oxygen. 39. Human activities such as burning fossil fuels is contributing too ..... A) The green house gas effect. B) The enhanced climate change effect. C) The enhanced green house effect. D) None of the above. Show Answer Correct Answer: C) The enhanced green house effect. 40. Ozone layer depletion has A) An ionic mechanism. B) A free radical mechanism. C) No mechanism. D) None of the above. Show Answer Correct Answer: B) A free radical mechanism. 41. What is oxidation number of Na in Na$^{+}$? A) +1. B) -1. C) +1/2. D) 0. Show Answer Correct Answer: A) +1. 42. What is the main cause for the increase in Carbon Dioxide gas? A) Evaporation of water. B) Plants. C) Cow farming. D) Burning fossil fuels. Show Answer Correct Answer: D) Burning fossil fuels. 43. The best way to determine if a substance is an acid or a base is to use a(n) A) Acid-base indicator. B) Acid-base neutralizer. C) Taste test. D) PH scale. Show Answer Correct Answer: A) Acid-base indicator. 44. What is a greenhouse gas naturally present in the atmosphere that is increased by human activities? A) Nitrogen gas. B) Helium. C) Ozone. D) Carbon dioxide. Show Answer Correct Answer: D) Carbon dioxide. 45. Alternative energy sources that help mitigate acid rain: A) Wind and solar energy. B) Coal power. C) Diesel engines. D) Biomass burning. Show Answer Correct Answer: A) Wind and solar energy. 46. Apa saja sumber utama emisi gas rumah kaca? A) Generasi energi angin. B) Proses daur ulang. C) Produksi energi solar. D) Sumber utama emisi gas rumah kaca adalah pembakaran bahan bakar fosil, deforestasi, proses industri, dan pertanian. Show Answer Correct Answer: D) Sumber utama emisi gas rumah kaca adalah pembakaran bahan bakar fosil, deforestasi, proses industri, dan pertanian. 47. Which of the following statements is not true about classical smog? A) Its main components are produced by the action of sunlight on emissions of automobiles and factories. B) Produced in cold and humid climate. C) It contains compounds of reducing nature. D) It contains smoke, fog and sulphur dioxide. Show Answer Correct Answer: A) Its main components are produced by the action of sunlight on emissions of automobiles and factories. 48. *Healthy water is determined by A) *dissolved oxygen, pH, which organisms are present. B) *dissolved oxygen, clarity, pH. C) *clarity, turbidity, current. D) *organisms present, turbidity, pH. Show Answer Correct Answer: A) *dissolved oxygen, pH, which organisms are present. 49. Natural resource depletion primarily occurs when: A) Resources are used faster than they regenerate. B) Resources are not used at all. C) Resources are used at the same rate they regenerate. D) Resources are artificially created. Show Answer Correct Answer: A) Resources are used faster than they regenerate. 50. What is the impact of water pollution on aquatic life? A) Water pollution severely harms aquatic life by causing toxicity, habitat destruction, and disruption of ecosystems. B) Aquatic life thrives in polluted waters due to increased food sources. C) Water pollution improves aquatic life by providing nutrients. D) Water pollution has no effect on aquatic ecosystems. Show Answer Correct Answer: A) Water pollution severely harms aquatic life by causing toxicity, habitat destruction, and disruption of ecosystems. 51. What are the chemical used as coagulant in water treatment plant? A) Hydrogen peroxide and bleach. B) Chlorine and sodium. C) Vinegar and baking soda. D) Aluminum sulfate and iron(III) sulfate. Show Answer Correct Answer: D) Aluminum sulfate and iron(III) sulfate. 52. Which of the following is an example of a non-point source of pollution? A) A fertilized field. B) The exhaust pipe on a truck driving across the province. C) A smokestack. D) A drainpipe. Show Answer Correct Answer: A) A fertilized field. 53. The factor changing within the experiment A) Independent variable. B) Constant. C) Dependent variable. D) Control variable. Show Answer Correct Answer: A) Independent variable. 54. The chemical used in wet scrubbing of SO2 is: A) CaCO3 or Ca(OH)2. B) NaCl. C) NH3. D) HCl. Show Answer Correct Answer: A) CaCO3 or Ca(OH)2. 55. This value indicates the acidity of a solution. It is also a measure of the concentration of Hydrogen ions in a solution. A) Acidity. B) Basic. C) HP. D) PH. Show Answer Correct Answer: D) PH. 56. Which of the following is a atmospheric nitrogen? A) NO$_{3}$$^{-}$. B) NO$_{2}$$^{-}$. C) NH$_{3}$. D) N$_{2}$. Show Answer Correct Answer: D) N$_{2}$. 57. If a blue litmus paper is placed in an acid, the paper will turn: A) Blue. B) Red. C) Purple. D) None of the above. Show Answer Correct Answer: B) Red. 58. *Nitrogen Oxides cause A) Acid Rain. B) Death. C) Smog. D) Asthma. Show Answer Correct Answer: C) Smog. 59. Without the Greenhouse Effect the Earth would be A) Warm. B) Cold. C) Dead. D) None of the above. Show Answer Correct Answer: B) Cold. 60. In Antarctica ozone depletion is due to the formation of following compound. A) Acrolein. B) Peroxyacetyl nitrate. C) SO2 and SO3. D) Chlorine nitrate. Show Answer Correct Answer: D) Chlorine nitrate. ← 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 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 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books