This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part Ii) Chapter 14 Environmental Chemistry – Quiz 24 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part Ii) Chapter 14 Environmental Chemistry Quiz 24 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Name three greenhouse gases and their sources. A) Carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O) and their sources:CO2 from fossil fuel combustion, CH4 from fossil fuel production, N2O from agriculture. B) Sulfur dioxide (SO2) from volcanic eruptions. C) Ozone (O3) from vehicle emissions. D) Water vapor (H2O) from ocean evaporation. Show Answer Correct Answer: A) Carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O) and their sources:CO2 from fossil fuel combustion, CH4 from fossil fuel production, N2O from agriculture. 2. Which of the following contributes to the natural greenhouse effect? A) Nitrogen gas. B) Water vapor. C) Helium gas. D) Neon gas. Show Answer Correct Answer: B) Water vapor. 3. Having a pH level of less than 7 A) Basic. B) Alkaline. C) Lipid. D) Acidic. Show Answer Correct Answer: D) Acidic. 4. Which factor directly affects dissolved oxygen levels in aquatic environments? A) Turbulence, temperature, photosynthesis, and organism activity. B) Atmospheric ozone thickness only. C) Amount of carbon monoxide in air. D) Presence of scrubbers on factory stacks. Show Answer Correct Answer: A) Turbulence, temperature, photosynthesis, and organism activity. 5. In an acidimetric potentiometric titration of a seawater sample, Vp means A) The mass of acid needed to neutralize phenolphthalein. B) The mass of acid to remove all the carbonate in the sample. C) The volume of acid to remove all the bicarbonate in the sample. D) The volume of acid to turn phenolphthalein colorless. Show Answer Correct Answer: D) The volume of acid to turn phenolphthalein colorless. 6. Which of the following is a primary pollutant in environmental chemistry? A) Carbon dioxide (CO2). B) Sulfur dioxide (SO2). C) Ozone (O3). D) Nitric acid (HNO3). Show Answer Correct Answer: B) Sulfur dioxide (SO2). 7. Which amongst the following is the correct statement regarding role of KMnO4 in treatment of phosphorous poisoning? A) Coats the particles of phosphorous with a film. B) It is used to adsorb Phosphorous. C) It is used to treat hypoprothrombinemia. D) It oxidizes phosphorous into phosphoric acid. Show Answer Correct Answer: D) It oxidizes phosphorous into phosphoric acid. 8. Apa efek jangka panjang dari polutan lingkungan terhadap ekosistem? A) Interaksi spesies yang meningkat. B) Peningkatan kesuburan tanah. C) Efek jangka panjang dari polutan lingkungan terhadap ekosistem termasuk penurunan keanekaragaman hayati, degradasi habitat, dan gangguan fungsi ekosistem. D) Kualitas air yang lebih baik. Show Answer Correct Answer: C) Efek jangka panjang dari polutan lingkungan terhadap ekosistem termasuk penurunan keanekaragaman hayati, degradasi habitat, dan gangguan fungsi ekosistem. 9. A person lacking iodine may suffer from a deficiency disease called ..... A) Goiter. B) Kwashiorkor. C) Rickets. D) VKDB. Show Answer Correct Answer: A) Goiter. 10. Which of the following is a major benefit of afforestation? A) Increases air pollution. B) Improves air quality. C) Increases carbon dioxide levels. D) Reduces oxygen production. Show Answer Correct Answer: B) Improves air quality. 11. How is crude oil extracted from the crust? A) By drilling. B) By mining. C) By fracking. D) None of the above. Show Answer Correct Answer: A) By drilling. 12. The oxidation of NO to NO2 occurs mainly through: A) Direct photolysis. B) Reaction with O3. C) Hydrolysis. D) Carbonation. Show Answer Correct Answer: B) Reaction with O3. 13. Long-term monitoring of acid deposition involves measuring: A) PH and ion concentrations in rainwater. B) Temperature. C) Wind velocity. D) Cloud color. Show Answer Correct Answer: A) PH and ion concentrations in rainwater. 14. Which reaction represents the formation of carbon monoxide? A) C + O2 $\rightarrow$ CO2. B) 2C + O2 $\rightarrow$ 2CO. C) N2 + O2 $\rightarrow$ NO2. D) SO2 + O2 $\rightarrow$ SO3. Show Answer Correct Answer: B) 2C + O2 $\rightarrow$ 2CO. 15. An underground container where bacteria break down the organic materials ..... A) Septic tank. B) Sewage container. C) Storm sewer. D) Effluent tank. Show Answer Correct Answer: A) Septic tank. 16. Reducing the concentration of a pollutant by mixing it with large quantities of water is called ..... A) Dispersion. B) Diffusion. C) Dilution. D) Displacement. Show Answer Correct Answer: C) Dilution. 17. What can high water hardness lead to? A) Mineral build up in pipes. B) Lower boiling point. C) Higher boiling point. D) Lead in drinking water. Show Answer Correct Answer: A) Mineral build up in pipes. 18. The largest gaseous component of the atmosphere is A) Oxygen. B) Carbondioxide. C) Nitrogen. D) Watervapour. Show Answer Correct Answer: B) Carbondioxide. 19. The oxidation of SO2 in the atmosphere can occur via: A) O3 and H2O2. B) CO2. C) N2O. D) CH4. Show Answer Correct Answer: A) O3 and H2O2. 20. Which of the following is NOT an effect of Global Warming? A) Polar ice caps will melt. B) Coastal regions will be covered with rising sea levels. C) Some areas will experience serious droughts. D) The Earth's rotation will slow down and eventually stop. Show Answer Correct Answer: D) The Earth's rotation will slow down and eventually stop. 21. What is the main cause of ozone layer depletion? A) Carbon dioxide. B) Chlorofluorocarbons (CFCs). C) Oxygen. D) Nitrogen oxides. Show Answer Correct Answer: B) Chlorofluorocarbons (CFCs). 22. A solution with a pH of 7 is considered ..... A) Acidic. B) Basic. C) Neutral. D) Alkaline. Show Answer Correct Answer: C) Neutral. 23. Inorganic compounds are best described as: A) Compounds containing carbon found in living organisms. B) Chemical compounds that do not contain carbon, such as minerals and salts. C) Large, complex molecules like carbohydrates and nucleic acids. D) Compounds produced only by plants during photosynthesis. Show Answer Correct Answer: B) Chemical compounds that do not contain carbon, such as minerals and salts. 24. What is the full chemical name of DDT? A) Dichlorodiphenyltrichloroethane. B) Dichlorodiphenyltrichloroethene. C) Dichlorodiphenyltrichloromethane. D) Dichlorodiphenyltrichloroethanol. Show Answer Correct Answer: A) Dichlorodiphenyltrichloroethane. 25. 'Silent Spring' had a significant impact on environmental awareness by: A) Raising public awareness about the dangers of pesticides. B) Promoting the use of chemical pesticides. C) Ignoring the effects of pollution. D) Supporting industrial growth. Show Answer Correct Answer: A) Raising public awareness about the dangers of pesticides. ← PreviousNext →Related 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 8Class 11 Chemistry (Part Ii) Chapter 14 Environmental Chemistry Quiz 9Class 11 Chemistry (Part Ii) Chapter 14 Environmental Chemistry Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books