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 17 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part Ii) Chapter 14 Environmental Chemistry Quiz 17 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The process in which bacteria in the soil convert nitrogen from the atmosphere is called A) The Atmosphere Cycle. B) The Nitrogen Cycle. C) The Pollution Cycle. D) The Air Cycle. Show Answer Correct Answer: B) The Nitrogen Cycle. 2. Why is recycling aluminium good for the environment? A) It's expensive to make new aluminium. B) It's radioactive. C) Aluminium absorbs heat. D) It reduces food waste. Show Answer Correct Answer: A) It's expensive to make new aluminium. 3. Discuss the impact of deforestation on greenhouse gas emissions. A) Deforestation has no impact on greenhouse gas emissions. B) Deforestation reduces greenhouse gas emissions by absorbing excess carbon dioxide. C) Deforestation increases greenhouse gas emissions by releasing stored carbon into the atmosphere. D) Deforestation leads to a decrease in greenhouse gas emissions due to soil degradation. Show Answer Correct Answer: C) Deforestation increases greenhouse gas emissions by releasing stored carbon into the atmosphere. 4. Which disease is commonly linked to air pollution? A) Asthma. B) Arthritis. C) Malaria. D) Diabetes. Show Answer Correct Answer: A) Asthma. 5. Which is a natural source of greenhouse gases? A) Volcanic eruptions. B) Aerosols. C) Burning fossil fuels. D) Deforestation. Show Answer Correct Answer: A) Volcanic eruptions. 6. Acid-base indicators change color based on what property of a solution? A) Volume. B) PH. C) Temperature. D) Density. Show Answer Correct Answer: B) PH. 7. Bagaimana individu dapat mengurangi jejak karbon mereka? A) Sering mengemudi. B) Gunakan transportasi umum, kurangi penggunaan energi, makan lebih sedikit daging, daur ulang, dan dukung energi terbarukan. C) Menambah konsumsi daging. D) Gunakan lebih banyak produk plastik. Show Answer Correct Answer: B) Gunakan transportasi umum, kurangi penggunaan energi, makan lebih sedikit daging, daur ulang, dan dukung energi terbarukan. 8. Which of the following have been changed or altered due to climate change? A) Droughts. B) Flooding. C) Melting of polar ice caps. D) All of the above. Show Answer Correct Answer: D) All of the above. 9. What are the impact of algae bloom to the environment? A) Algae blooms can deplete oxygen in the water, release toxins, and harm aquatic life. B) Algae blooms increase oxygen levels in the water. C) Algae blooms have no impact on aquatic life. D) Algae blooms help in cleaning the water. Show Answer Correct Answer: A) Algae blooms can deplete oxygen in the water, release toxins, and harm aquatic life. 10. Nitrogen oxides are primarily emitted from: A) Industrial boilers and vehicle exhausts. B) Oceans. C) Forests. D) Volcanoes. Show Answer Correct Answer: A) Industrial boilers and vehicle exhausts. 11. What is prepared by one step oxidation of ethene A) Ethanol C2H5OH. B) Ethanal CH3CHO. C) Ethoxide C2H5O. D) Ethane C2H6. Show Answer Correct Answer: B) Ethanal CH3CHO. 12. Suppose you are given a water sample and asked to test for both nitrate and phosphate ions. Outline the main difference in the reagents used for each test. A) Both tests use only deionised water. B) Nitrate test uses iron(II) sulfate and sulfuric acid, while phosphate test uses ammonium molybdate reagent. C) Both tests use ammonium molybdate reagent. D) Nitrate test uses ammonium molybdate reagent, while phosphate test uses iron(II) sulfate and sulfuric acid. Show Answer Correct Answer: B) Nitrate test uses iron(II) sulfate and sulfuric acid, while phosphate test uses ammonium molybdate reagent. 13. What is the main source of nitric oxide in the upper layer of the atmosphere? A) Forest fires. B) Dust storms. C) Lightning & thunderstorms. D) Human activities. Show Answer Correct Answer: C) Lightning & thunderstorms. 14. The layer of atmosphere between 10 km and 50 km above the sea level is called(a) thermosphere(b) mesosphere(c) stratosphere(d) troposphere. A) A. B) C. C) B. D) D. Show Answer Correct Answer: B) C. 15. *Sulfur Dioxide causes A) Death. B) Asthma. C) Smog. D) Acid Rain. Show Answer Correct Answer: D) Acid Rain. 16. How would you best extract iron from haematite (iron ore)? A) Electrolysis. B) Reduction by carbon. C) Decomposition. D) Oxidation. Show Answer Correct Answer: B) Reduction by carbon. 17. Which of these is not a greenhouse gas? A) Ozone. B) Methane. C) Carbon dioxide. D) None of these. Show Answer Correct Answer: D) None of these. 18. The pure metal at higher energy will always have a tendency to go into the higher energy state by the attack of environment. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 19. Apa parameter yang biasanya diuji dalam analisis kualitas air? A) Salinitas. B) Suhu air. C) PH, oksigen terlarut, kekeruhan, total padatan terlarut, nutrisi, logam berat, kontaminan mikroba. D) Konsentrasi klorofil. Show Answer Correct Answer: C) PH, oksigen terlarut, kekeruhan, total padatan terlarut, nutrisi, logam berat, kontaminan mikroba. 20. Visibility reduction due to acid aerosols occurs because: A) They dissolve rapidly. B) Aerosols scatter light. C) They absorb CO2. D) They produce O3. Show Answer Correct Answer: B) Aerosols scatter light. 21. The material that an organism lives or moves on ..... A) Rock. B) Ground. C) Nutrients. D) Substrate. Show Answer Correct Answer: D) Substrate. 22. A displacement reaction is a chemical reaction in which a ..... element displaces another element A) Moore. B) More. C) Less. D) The same. Show Answer Correct Answer: B) More. 23. Which does NOT cause acid rain? A) Erupting volcanoes. B) Burning fossil fuels-coal, oil, gas. C) Car engines. D) Electric cars. Show Answer Correct Answer: D) Electric cars. 24. Which term describes the breakdown of substances by living things? A) Diffusion. B) Osmosis. C) Biomagnification. D) Biodegradation. Show Answer Correct Answer: D) Biodegradation. 25. What is the time that it takes for half of the chemical or toxin to be expelled from the body? A) Digestive period. B) Metabolic time. C) Expulsion rate. D) Half life. Show Answer Correct Answer: D) Half life. 26. Lead in water is what kind of water pollution category? A) Nutrient. B) Disease-causing organisms. C) Inorganic. D) Organic. Show Answer Correct Answer: C) Inorganic. 27. *2.5mL of sodium hydroxide is dissolved in 997.5mL to make a total volume of 1000mL. What is the concentration? A) *25 ppm. B) *25 000 ppm. C) *250 ppm. D) *2 500 ppm. Show Answer Correct Answer: D) *2 500 ppm. 28. What is to recycle? A) To transform things into materials for new things. B) To use something more than once. C) Use and produce less things. D) None of the above. Show Answer Correct Answer: A) To transform things into materials for new things. 29. *The nitrogen cycle generates nitrogen from which of the following processes? A) *photosynthesis, lightning, bacteria. B) *lightning, decomposition, photosynthesis. C) *photosynthesis, decomposition, bacteria. D) *lightning, decomposition, bacteria. Show Answer Correct Answer: D) *lightning, decomposition, bacteria. 30. Which of the following contributes least to global warming? A) Power plants. B) Car engines. C) Deforestation. D) Wind turbines. Show Answer Correct Answer: D) Wind turbines. 31. Polimer termoplastik memiliki ciri-ciri berikut, kecuali ..... A) Mudah ditekuk. B) Dapat melunak jika dipanaskan. C) Sedikit berikatan silang. D) Keras dan rapuh. Show Answer Correct Answer: D) Keras dan rapuh. 32. Which of the following is a common method for reducing nitrogen oxides (NOx) emissions from industrial sources? A) Electrostatic precipitators. B) Activated carbon filters. C) Catalytic converters. D) Scrubbers. Show Answer Correct Answer: C) Catalytic converters. 33. The process by which bacteria break down harmful chemicals in the environment is called ..... A) Photolysis. B) Phytoremediation. C) Dispersion. D) Biodegradation. Show Answer Correct Answer: D) Biodegradation. 34. The burning of which fuel is the main source of industrial smog? A) Coal. B) Oil. C) Natural Gas. D) Biomass. Show Answer Correct Answer: A) Coal. 35. What is to reduce A) To transform things into materials for new things. B) To use something more than once. C) To use and produce less things. D) None of the above. Show Answer Correct Answer: C) To use and produce less things. 36. Which of the following is a renewable fuel? A) Natural gas. B) Oil. C) Wood. D) None of the above. Show Answer Correct Answer: C) Wood. 37. Which of the following is a heavy metal pollutant? A) Sodium. B) Lead. C) Calcium. D) Potassium. Show Answer Correct Answer: B) Lead. 38. What is the balanced chemical equation for the complete combustion of methane ( $CH_4$ A) $CH_4 + 4O_2 \rightarrow CO_2 + 4H_2O$. B) $CH_4 + O_2 \rightarrow CO + 2H_2O$. C) $2CH_4 + 3O_2 \rightarrow 2CO + 4H_2O$. D) $CH_4 + 2O_2 \rightarrow CO_2 + 2H_2O$. Show Answer Correct Answer: D) $CH_4 + 2O_2 \rightarrow CO_2 + 2H_2O$. 39. Enhanced Greenhouse Effect is defined in the material as: A) Weather variations due to seasonal changes. B) Natural absorption of UV radiation by ozone. C) Increased warming of Earth's atmosphere caused by higher concentrations of greenhouse gases from human activities. D) Reduction of sulfur dioxide through scrubbing. Show Answer Correct Answer: C) Increased warming of Earth's atmosphere caused by higher concentrations of greenhouse gases from human activities. 40. Which term best matches its definition: "Organisms such as aquatic invertebrates and microorganisms used to assess the health of water ecosystems" ? A) Chemical indicators. B) Substrate. C) Biological indicators. D) Dissolved oxygen. Show Answer Correct Answer: C) Biological indicators. 41. What is a misconception about green chemistry? A) It is relevant to everyday life. B) It is only for chemists. C) It focuses on sustainability. D) It is based on scientific principles. Show Answer Correct Answer: B) It is only for chemists. 42. Chronic toxicosis typically refers to exposure longer than what time period? A) 7 days. B) 24 hours. C) 5 weeks. D) 3 months. Show Answer Correct Answer: D) 3 months. 43. Choose a statement that best describes humic substances. A) It can biodegrade quickly. B) It increases the sediment in a river. C) It slows down internal production. D) It causes lakes to be eutrophic. Show Answer Correct Answer: C) It slows down internal production. 44. Which of the following is NOT a source of CO? A) Attack of VOCs by OH radicals. B) Photodegradation of methane. C) Biodegradation of methane. D) Incomplete combustion. Show Answer Correct Answer: C) Biodegradation of methane. 45. Acidification of lakes results in: A) Algal bloom. B) Biodiversity loss. C) Neutral pH. D) Increased oxygen content. Show Answer Correct Answer: B) Biodiversity loss. 46. What is the study of the environment, its living and nonliving components, and the interactions of these components? A) Physics. B) Environmental Science. C) Chemistry. D) Biology. Show Answer Correct Answer: B) Environmental Science. 47. Apa efek pestisida terhadap spesies non-target? A) Pestisida hanya mempengaruhi spesies target dan tidak berdampak pada yang lain. B) Pestisida dapat membahayakan spesies non-target dengan menyebabkan toksisitas, gangguan reproduksi, dan penurunan populasi. C) Pestisida tidak berpengaruh pada siklus reproduksi spesies manapun. D) Pestisida meningkatkan kesehatan spesies non-target dengan memberikan nutrisi. Show Answer Correct Answer: B) Pestisida dapat membahayakan spesies non-target dengan menyebabkan toksisitas, gangguan reproduksi, dan penurunan populasi. 48. During cellular respiration, what is the primary form of energy produced? A) Light energy. B) Kinetic energy. C) ATP (chemical energy). D) Heat energy. Show Answer Correct Answer: C) ATP (chemical energy). 49. "15-30-15" refers to what on a bag of fertilizer? A) Percentage of major nutrients (N-P-K). B) Percentage of minor nutrients (Ca-Mg-S). C) Mass of major nutrients (N-P-K). D) Mass of minor nutrients (Ca-Mg-S). Show Answer Correct Answer: A) Percentage of major nutrients (N-P-K). 50. Suatu industri pelapisan logam menghasilkan limbah cair kromium (Cr6+). Berdasarkan konsep AMDAL, kombinasi komponen dokumen yang paling relevan untuk menganalisis dan menangani masalah ini adalah ..... A) KA-ANDAL (tanpa analisis laboratorium) + PIL. B) ANDAL (prediksi dampak kimia) + RKL (reduksi Cr6+ $\rightarrow$ Cr3+) + RPL (monitoring AAS). C) PIL (data umum) + SPPL. D) RKL (tanpa baseline) + UKL-UPL. Show Answer Correct Answer: B) ANDAL (prediksi dampak kimia) + RKL (reduksi Cr6+ $\rightarrow$ Cr3+) + RPL (monitoring AAS). 51. An igneous rock containing large crystals is most likely a(n) A) Intrusive Rock. B) Foliated Rock. C) Chemical Rock. D) Extrusive Rock. Show Answer Correct Answer: A) Intrusive Rock. 52. Which item should you NOT put in your compost pile? A) Food scraps. B) Wood chips. C) Autumn leaves. D) Plastic. Show Answer Correct Answer: D) Plastic. 53. Apparent deflection of moving objects when they are viewed from a rotating frame of reference A) Induction. B) Coriolis force. C) Angular momentum. D) Gravitation. Show Answer Correct Answer: B) Coriolis force. 54. What is the significance of discussing misconceptions in environmental chemistry? A) To reinforce incorrect ideas. B) To clarify understanding. C) To limit student engagement. D) To avoid complex topics. Show Answer Correct Answer: B) To clarify understanding. 55. Which of the following is NOT a topic of interest mentioned in the document? A) Pollution. B) Waste Management. C) Water Treatment. D) Astronomy. Show Answer Correct Answer: D) Astronomy. 56. What does the prefix "bio-" mean? A) Sugar. B) Non living. C) Living. D) Abiotic. Show Answer Correct Answer: C) Living. 57. What is the primary cause of eutrophication in water systems? A) Nitrate fertilizers. B) Untreated sewage. C) Phosphate detergents. D) Heavy metal ions. Show Answer Correct Answer: A) Nitrate fertilizers. 58. Which units are commonly used to express concentrations of chemicals in water? A) Grams per liter (g/L) only. B) Parts per million (ppm), parts per billion (ppb), and parts per trillion (ppt). C) Moles per kilogram (mol/kg) only. D) Milliliters per minute (mL/min). Show Answer Correct Answer: B) Parts per million (ppm), parts per billion (ppb), and parts per trillion (ppt). 59. Why can carbon extract some metals? A) It melts metals. B) It adds electrons. C) It oxidises them. D) It is less reactive. Show Answer Correct Answer: D) It is less reactive. 60. An organic nutrient, made of carbon, hydrogen and oxygen A) Carbohydrate. B) Vitamin. C) Lipid. D) Protein. Show Answer Correct Answer: A) Carbohydrate. ← 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