This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part Ii) Chapter 14 Environmental Chemistry – Quiz 31 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part Ii) Chapter 14 Environmental Chemistry Quiz 31 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Is the amount of a substance that causes 50% of a group of test animals to die ..... A) Tox50. B) LD50. C) AP50. D) DR50. Show Answer Correct Answer: B) LD50. 2. The substance which is a primary pollutant is A) H2SO4. B) CO. C) PAN. D) Aldehydes. Show Answer Correct Answer: B) CO. 3. True or False. A substance is Organic if it contains Carbon A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 4. What is the importance of cleaner production in addressing global environmental challenges? A) It reduces waste generation and resource consumption. B) It has no impact on environmental sustainability. C) It promotes the use of harmful chemicals. D) It increases greenhouse gas emissions. Show Answer Correct Answer: A) It reduces waste generation and resource consumption. 5. Which description correctly distinguishes the ozone layer from ground-level ozone? A) Both are beneficial to crops. B) The ozone layer is high in the atmosphere and absorbs harmful ultraviolet radiation; ground-level ozone is a pollutant harmful to health and crops. C) Both are greenhouse gases trapping heat. D) Ground-level ozone protects against UV radiation while the ozone layer causes smog. Show Answer Correct Answer: B) The ozone layer is high in the atmosphere and absorbs harmful ultraviolet radiation; ground-level ozone is a pollutant harmful to health and crops. 6. What are the two main methods of rust prevention? A) Sacrificial protection and reduction. B) Applying protective layer and reduction. C) Sacrificial protection and applying protective layer. D) Oxidation and reduction. Show Answer Correct Answer: C) Sacrificial protection and applying protective layer. 7. In an ion-exchange resin, the calcium ions in hard water are replaced by: A) Hydrogen ions. B) Sodium ions. C) Chloride ions. D) Hydroxide ions. Show Answer Correct Answer: B) Sodium ions. 8. Which among the following is NOT a particulate pollutant? A) Smoke. B) Smog. C) CO. D) Dust. Show Answer Correct Answer: C) CO. 9. What does it mean that pesticides may not be "selective" ? A) Pesticides will choose which pests they kill. B) Pesticides may not only kill pests. C) All the above. D) None of the above. Show Answer Correct Answer: B) Pesticides may not only kill pests. 10. When was the universal sanitation coverage expected? A) 2nd December, 2015. B) 30th August, 2016. C) 2nd October, 2019. D) 4th September, 2019. Show Answer Correct Answer: C) 2nd October, 2019. 11. This type of heavy metal poisoning is one of the oldest occupational and environmental disease in the world. A) Lead. B) Mercury. C) Arsenic. D) None of the above. Show Answer Correct Answer: A) Lead. 12. Which gas is primarily responsible for acid rain? A) Carbon dioxide. B) Sulfur dioxide. C) Neon. D) Argon. Show Answer Correct Answer: B) Sulfur dioxide. 13. How does weathering change the composition of water? A) Through breaking of rocks. B) Through evaporation. C) Through deposition. D) Through decomposition of organic matter. Show Answer Correct Answer: A) Through breaking of rocks. 14. When doing a flame test, what element is indicated by a purple/lilac flame? A) Barium. B) Calcium. C) Potassium. D) None of the above. Show Answer Correct Answer: C) Potassium. 15. A chemical used to target and control weeds A) Insecticide. B) Pesticide. C) Herbicide. D) Fungicide. Show Answer Correct Answer: C) Herbicide. 16. Lead leaching into water supplies due to acid rain can cause: A) Anemia and neurological damage. B) Skin allergies. C) Diabetes. D) Cholera. Show Answer Correct Answer: A) Anemia and neurological damage. 17. What are the two main classifications of natural resources? A) Abiotic and Biotic. B) Primary and Secondary. C) Organic and Inorganic. D) Renewable and Non-renewable. Show Answer Correct Answer: D) Renewable and Non-renewable. 18. ..... is the increase in concentration of a chemical as it moves up the food chain. A) Biodegradation. B) Biomagnification. C) Osmosis. D) Dispersion. Show Answer Correct Answer: B) Biomagnification. 19. The alkali metals are in group 1, on the far left of the periodic table. Which of these is NOT an alkali metal? A) Lithium. B) Iron. C) Potassium. D) Francium. Show Answer Correct Answer: B) Iron. 20. Why do safe handling and proper disposal of chemicals matter, based on the Important Ideas and Key Vocabulary? A) They prevent all acids from becoming bases. B) They protect people and nature from toxic or hazardous substances. C) They stop diffusion from occurring in water. D) They guarantee biomagnification will not happen. Show Answer Correct Answer: B) They protect people and nature from toxic or hazardous substances. 21. The first scientist to coin the term "acid rain" was: A) Svante Arrhenius. B) Robert Angus Smith. C) Paul Crutzen. D) Joseph Priestley. Show Answer Correct Answer: B) Robert Angus Smith. 22. Ozone and acid rain are both pollutants formed through reactions in the atmosphere. This makes them A) Primary air pollutants. B) Secondary air pollutants. C) Atmospheric transport. D) Atmospheric deposition. Show Answer Correct Answer: B) Secondary air pollutants. 23. What are the implications of teaching about global warming and climate change? A) To understand environmental pollution. B) To develop the scientific enquiry skills. C) To describe the principle of green chemistry and cleaner production. D) To propose safe methods of disposing non-biodegradable wastes. Show Answer Correct Answer: B) To develop the scientific enquiry skills. 24. Theory of evolution happens through a process called A) Survival of the fittest. B) Transfer of genes. C) Natural selection. D) Adaptation. Show Answer Correct Answer: C) Natural selection. 25. High concentration of fluoride is poisonous and harmful to bones and teeth at levels over: A) 1 ppm. B) 3 ppm. C) 5 ppm. D) 10 ppm. Show Answer Correct Answer: D) 10 ppm. ← 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