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 19 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part Ii) Chapter 14 Environmental Chemistry Quiz 19 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Salah satu manfaat AMDAL bagi analis kimia adalah ..... A) Mendukung penilaian awal terhadap risiko keberadaan zat berbahaya seperti logam berat. B) Menyediakan gambaran awal mengenai karakteristik kimia lingkungan yang mungkin terpengaruh oleh aktivitas proyek. C) Memungkinkan perencanaan analisis laboratorium terhadap polutan kimia. D) Memberikan dasar untuk mengidentifikasi potensi perubahan parameter kimia sebelum kegiatan berjalan. Show Answer Correct Answer: A) Mendukung penilaian awal terhadap risiko keberadaan zat berbahaya seperti logam berat. 2. Test for bromide ions is ..... A) Add hydrochloric acid. B) Add barium chloride. C) Add nitric acid then silver nitrate. D) None of the above. Show Answer Correct Answer: C) Add nitric acid then silver nitrate. 3. What are some sustainable alternatives to chemical pesticides? A) Biological control, neem oil, insecticidal soaps, crop rotation, companion planting. B) Chemical fertilizers. C) Synthetic herbicides. D) Genetically modified crops. Show Answer Correct Answer: A) Biological control, neem oil, insecticidal soaps, crop rotation, companion planting. 4. Which harmful gas is released by incomplete combustion? A) Helium. B) Carbon monoxide. C) Argon. D) Oxygen. Show Answer Correct Answer: B) Carbon monoxide. 5. Reactions that are initiated by the sun. A) Photochemical oxidants. B) Photochemical reactions. C) Volatile organic compounds. D) Combustion. Show Answer Correct Answer: B) Photochemical reactions. 6. A solution is classified as an acid when its pH is ..... and can neutralize ..... A) Greater than 7, other bases. B) Less than 7, bases. C) Greater than 7, bases. D) Less than 7, other bases. Show Answer Correct Answer: B) Less than 7, bases. 7. Things that cannot be repaired, can be ..... A) Reduced. B) Reused. C) Rethink. D) Recycled. Show Answer Correct Answer: D) Recycled. 8. Glaciers shape and carve away the land beneath them and can drastically reshape the landscape over hundreds or even thousands of years. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 9. O$_{2}$ makes up 21% of the air. What is the equilibrium concentration of O$_{2}$ in water? A) 8.367 mg/L. B) 0.273 mol/L. C) 0.000491 mol/L. D) 8.736 ppm. Show Answer Correct Answer: D) 8.736 ppm. 10. When water vapor is cooled and forms droplets of liquid water A) Transpiration. B) Evaporation. C) Condensation. D) Runoff. Show Answer Correct Answer: C) Condensation. 11. The gas leaked from a storage tank of the Union Carbide plant in Bhopal gas tragedy was A) Phosgene. B) Methylamine. C) Methyl isocyanate. D) Ammonia. Show Answer Correct Answer: C) Methyl isocyanate. 12. A special molecule that regulates chemical reactions in living organisms A) Inhibitor. B) Nutrient. C) Enzyme. D) Catalyst. Show Answer Correct Answer: C) Enzyme. 13. Which equation represents the process of photosynthesis? A) $2H_2 + O_2 \rightarrow 2H_2O$. B) $6CO_2 + 6H_2O \rightarrow C_6H_{12}O_6 + 6O_2$. C) $C_6H_{12}O_6 + 6O_2 \rightarrow 6CO_2 + 6H_2O$. D) $CH_4 + 2O_2 \rightarrow CO_2 + 2H_2O$. Show Answer Correct Answer: B) $6CO_2 + 6H_2O \rightarrow C_6H_{12}O_6 + 6O_2$. 14. Toxins are absorbed faster than they can be broken down because: A) They are more soluble in body fluids. B) The body lacks the necessary enzymes. C) They are smaller in size. D) They are more reactive. Show Answer Correct Answer: A) They are more soluble in body fluids. 15. Which of the following is a major source of sulfur dioxide (SO2) emissions? A) Respiration. B) Volcanic eruptions. C) Evaporation. D) Photosynthesis. Show Answer Correct Answer: B) Volcanic eruptions. 16. Which description correctly identifies an acid? A) A compound that dissolves in water to form a solution with a pH less than 7; often tastes sour and can be corrosive. B) A compound that dissolves in water to form a solution with a pH greater than 7; often feels slippery and can be corrosive. C) A scale used to measure how basic a solution is, where 7 is neutral. D) A compound that does not contain carbon, such as minerals and salts. Show Answer Correct Answer: A) A compound that dissolves in water to form a solution with a pH less than 7; often tastes sour and can be corrosive. 17. Which statement from the Important Ideas best explains why pollution can be a global issue? A) Chemicals can move long distances. B) Monitoring always eliminates pollutants. C) Cleaning up pollution uses only technology. D) Only local governments manage waste. Show Answer Correct Answer: A) Chemicals can move long distances. 18. Acid rain exposure primarily affects which human system? A) Digestive system. B) Nervous system. C) Respiratory system. D) Endocrine system. Show Answer Correct Answer: C) Respiratory system. 19. International efforts to reduce harmful emissions, as noted in the material, aim to: A) Increase use of chlorofluorocarbons (CFCs) to thicken the ozone layer. B) Eliminate monitoring to cut costs. C) Reduce harmful emissions and protect the atmosphere using agreements and technological advances. D) Focus only on local smog events. Show Answer Correct Answer: C) Reduce harmful emissions and protect the atmosphere using agreements and technological advances. 20. One method to reduce sulfur dioxide emitted into the air is to use smokestack scrubbers in industrial plants and electrical generating plants.Based on the information above, the practice of using smokestack scrubbers would most directly result in a reduction of A) Ozone layer depletion. B) Acid rain production. C) Algal blooms. D) Groundwater contamination. Show Answer Correct Answer: B) Acid rain production. 21. Water molecules are attracted to other kinds of molecules because of the property. A) Surface Tension. B) Universal Solvent. C) Cohesion. D) Adhesion. Show Answer Correct Answer: D) Adhesion. 22. Which of the following is a common method for measuring the acidity of rainwater? A) Litmus test. B) Spectroscopy. C) PH meter. D) Titration. Show Answer Correct Answer: C) PH meter. 23. At what time did global warming start to occur? A) Last year. B) At the beginning of the last decade. C) Around the time of the Industrial Revolution. D) None of the above. Show Answer Correct Answer: C) Around the time of the Industrial Revolution. 24. A yellow precipitate formed when an unknown solution is added to silver nitrate and nitric acid indicates the presence of which ion? A) Chloride. B) Iodide. C) Fluoride. D) Bromide. Show Answer Correct Answer: B) Iodide. 25. Movement of molecules in the opposite direction of diffusion (energy is required) A) Active transport. B) Diffusion. C) Osmosis. D) Hydrolysis. Show Answer Correct Answer: A) Active transport. 26. Which of the following sets of evidence supports global warming? A) CO$_{2}$ levels rising. B) Sea Levels rising. C) Glacier mass decreasing. D) All of the Above. Show Answer Correct Answer: D) All of the Above. 27. Identify a feature of epilimnion. A) Water is more dense. B) It is a transition zone. C) Temperature decreases sharply. D) Minor mixing occurs. Show Answer Correct Answer: D) Minor mixing occurs. 28. Organic compound needed for growth and repair, found in steak and chicken ..... A) Amino acids. B) Lipids. C) Carbohydrates. D) Proteins. Show Answer Correct Answer: D) Proteins. 29. Which of these contributes to acid rain? A) CaO. B) NaOH. C) HCl. D) SO$_{2}$. Show Answer Correct Answer: D) SO$_{2}$. 30. The major anthropogenic sources of SO2 are: A) Automobiles. B) Coal combustion and smelting. C) Agriculture. D) Biomass burning only. Show Answer Correct Answer: B) Coal combustion and smelting. 31. Testable explanation for an observation A) Law. B) Guess. C) Hypothesis. D) Theory. Show Answer Correct Answer: C) Hypothesis. 32. In which part of the atmosphere, ozone layer is present? A) Stratosphere. B) Troposphere. C) Mesosphere. D) Thermosphere. Show Answer Correct Answer: A) Stratosphere. 33. Process used to breakdown large organic molecules during digestions ..... A) Osmosis. B) Diffusion. C) Hydrolysis. D) Active transport. Show Answer Correct Answer: C) Hydrolysis. 34. As a member of the community, your best contribution towards reducing environmental pollution is by ..... A) Taking part in a community bazaar. B) Taking part in a clean-up-the-neighbourhood activity. C) Taking part in an anti-plastic-bag marathon run. D) Taking part in the burning of community garbage. Show Answer Correct Answer: B) Taking part in a clean-up-the-neighbourhood activity. 35. What is the concept of ecological resilience? A) The concept of ecological resilience refers to the permanent alteration of ecosystems. B) The concept of ecological resilience is the ability of an ecosystem to expand indefinitely. C) The concept of ecological resilience is the ability of an ecosystem to withstand and recover from disturbances. D) The concept of ecological resilience is the inability of an ecosystem to adapt to changes. Show Answer Correct Answer: C) The concept of ecological resilience is the ability of an ecosystem to withstand and recover from disturbances. 36. Which of the following human activities contributes most to global warming? A) Afforestation. B) Fossil fuel combustion. C) Water conservation. D) Wildlife conservation. Show Answer Correct Answer: B) Fossil fuel combustion. 37. We take off the lids and rinse these items before we recycle them. A) Cardboard boxed. B) Newspapers. C) Old T-shirts. D) Plastic containers and bottles. Show Answer Correct Answer: D) Plastic containers and bottles. 38. Nitric acid in acid rain originates mainly from: A) NH3 hydrolysis. B) NO2 oxidation. C) N2 fixation. D) N2O decomposition. Show Answer Correct Answer: B) NO2 oxidation. 39. The surfaces of old concrete statues are often covered with small holes or pits. Which of these MOST LIKELY causes these holes or pits? A) The concrete becomes pitted as water freezes in small cracks in the statue. B) The concrete is chipped away by sand particles blown by strong winds. C) The concrete is chemically weathered by acid rain. D) Long exposure to sunlight causes the pits to form. Show Answer Correct Answer: C) The concrete is chemically weathered by acid rain. 40. Which metal can be extracted using carbon? A) Sodium. B) Potassium. C) Iron. D) Aluminium. Show Answer Correct Answer: C) Iron. 41. Considering the information above, a study of the mayfly can be useful to scientists, since it is a A) Tolerant invertebrate species. B) Species influenced by predation. C) Species influenced by biomagnification. D) Biological indicator species. Show Answer Correct Answer: D) Biological indicator species. 42. In an experiment to test the effects of acid rain on plant growth, which variable would be considered the independent variable? A) The pH level of the rainwater. B) The type of plant used. C) The amount of sunlight. D) The growth rate of the plant. Show Answer Correct Answer: A) The pH level of the rainwater. 43. What role do nitrogen-fixing bacteria play in the nitrogen cycle? A) They convert atmospheric nitrogen into a usable form for plants. B) They convert nitrogen into oxygen. C) They produce carbon dioxide for plants. D) They remove nitrogen from the soil. Show Answer Correct Answer: A) They convert atmospheric nitrogen into a usable form for plants. 44. What is the rate of Nitrogen in the 15-10-5 fertilizer? A) 15. B) 10. C) 5. D) None of the above. Show Answer Correct Answer: A) 15. 45. How can water pollution effect animals and humans? A) It makes them happy. B) It makes them sleepy. C) It makes them tired. D) It makes them sick. Show Answer Correct Answer: D) It makes them sick. 46. Lipids are ..... ? A) Organic. B) Inorganic. C) All the above. D) None of the above. Show Answer Correct Answer: A) Organic. 47. Which of the following is a method to reduce land pollution? A) Improper waste disposal. B) Using biodegradable materials. C) Increasing fertilizer use. D) Ignoring waste management. Show Answer Correct Answer: B) Using biodegradable materials. 48. How do scientists obtain ice cores? A) They just find them. B) They drill them out of the ground of cold areas. C) They freeze water samples collected from warm areas. D) They freeze water samples that they create using carbon injection. Show Answer Correct Answer: B) They drill them out of the ground of cold areas. 49. What is the function of nitrogen in plant growth? A) Decrease of growth. B) Increases disease resistance. C) Makes seeds. D) Produces a healthy green color. Show Answer Correct Answer: D) Produces a healthy green color. 50. Identify biotic processes that affect the pH of water I. Synthesis of sulfides II. Wet deposition III. Dissolution of carbonates IV. Nitrification A) I, II. B) I, IV. C) II, III. D) III, IV. Show Answer Correct Answer: B) I, IV. 51. What had to be applied in order to make buried organic matter into fossil fuels? A) Industrial Pollution. B) Ocean Currents. C) Volcanic Activity. D) Heat and pressure. Show Answer Correct Answer: D) Heat and pressure. 52. How do human activities contribute to the decline of biodiversity? A) Promoting wildlife tourism and conservation efforts. B) Planting more trees in urban areas. C) Human activities contribute to biodiversity decline through habitat destruction, pollution, overfishing, and urbanization. D) Increased rainfall and natural disasters. Show Answer Correct Answer: C) Human activities contribute to biodiversity decline through habitat destruction, pollution, overfishing, and urbanization. 53. What is one of the goals of green chemistry? A) To increase hazardous waste. B) To minimize hazardous substances. C) To enhance chemical reactions. D) To promote fossil fuel use. Show Answer Correct Answer: B) To minimize hazardous substances. 54. Which of the following materials is most affected by acid rain? A) Marble. B) Iron. C) Plastic. D) Glass. Show Answer Correct Answer: A) Marble. 55. What are the essential minerals required in the algae bloom? A) Iron, copper, and zinc. B) Carbon, oxygen, and hydrogen. C) Nitrogen, phosphorus, and potassium. D) Sodium, calcium, and magnesium. Show Answer Correct Answer: C) Nitrogen, phosphorus, and potassium. 56. During the purification process, filtration separates the A) Solid purities. B) Solid impurities. C) All the above. D) None of the above. Show Answer Correct Answer: B) Solid impurities. 57. After completing the job of painting the neighbours' house, you were asked to properly dispose of all the leftover paint products. The best way to dispose of the paint and paint thinner is to A) Freeze it for use on another project. B) Take it to a hazardous waste collection site. C) Dilute it with lots of water and pour it down the drain. D) Put it into the solid waste garbage so it can be taken to a sanitary landfill site. Show Answer Correct Answer: B) Take it to a hazardous waste collection site. 58. What are the common chemical reactions involved in ozone formation? A) Ozone is created by the reaction of nitrogen and carbon dioxide. B) Ozone is produced by the interaction of sulfur dioxide and water vapor. C) Ozone is formed through the photodissociation of O2 and subsequent reactions with atomic oxygen. D) Ozone forms through the combustion of fossil fuels in the atmosphere. Show Answer Correct Answer: C) Ozone is formed through the photodissociation of O2 and subsequent reactions with atomic oxygen. 59. A common gas that we find dissolved in seawater is A) Oxygen. B) Neon. C) Carbon tetrachloride. D) Krypton. Show Answer Correct Answer: A) Oxygen. 60. How do livestock contribute to greenhouse gas emissions? A) Livestock contribute to greenhouse gas emissions through enteric fermentation, manure management, and feed production. B) Livestock contribute to greenhouse gas emissions through solar power generation. C) Livestock contribute to greenhouse gas emissions through water conservation practices. D) Livestock contribute to greenhouse gas emissions through wind energy production. Show Answer Correct Answer: A) Livestock contribute to greenhouse gas emissions through enteric fermentation, manure management, and feed production. ← 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