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 21 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part Ii) Chapter 14 Environmental Chemistry Quiz 21 (27 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What are the four most common elements in your body? A) Calcium, Iron, Magnesium, Zinc. B) Helium, Neon, Argon, Krypton. C) Oxygen, Carbon, Hydrogen, Nitrogen. D) Sodium, Potassium, Chlorine, Phosphorus. Show Answer Correct Answer: C) Oxygen, Carbon, Hydrogen, Nitrogen. 2. The dissolved oxygen concentration of a pond is 8 ppm by volume. This level of dissolved oxygen indicates that 8 mL of oxygen is found in A) 100 mL of water. B) 10 000 mL of water. C) 1 000 mL of water. D) 1 000 000 mL of water. Show Answer Correct Answer: D) 1 000 000 mL of water. 3. HBr is an example of a(n) A) Acid. B) Base. C) Neutral. D) None of the above. Show Answer Correct Answer: A) Acid. 4. How does eutrophication cause the death of aquatic organisms A) The build up of carbon dioxide in the water. B) The lack of carbon dioxide in the water. C) The lack of nitrogen in the water. D) The lack of oxygen in the water. Show Answer Correct Answer: D) The lack of oxygen in the water. 5. Nitrate and Sulphate are the nutrients that are washed into the water A) TRUE. B) FALSE. C) All the above. D) None of the above. Show Answer Correct Answer: B) FALSE. 6. Fertilizer from agricultural run-off can enter nearby streams and lakes. One effect that this has on the water environment is that ..... A) The water is poisoned. B) The oxygen content of the water drops. C) Aquatic plant growth decreases. D) Fish and other large animals increase in population. Show Answer Correct Answer: B) The oxygen content of the water drops. 7. Jenis besi cor yang digunakan untuk komponen mesin bersuhu tinggi seperti sistem knalpot atau turbocharger adalah ..... A) White cast iron. B) Ductile cast iron. C) Compacted cast iron. D) Grey cast iron. Show Answer Correct Answer: A) White cast iron. 8. How do catalytic converters reduce vehicle emissions? A) Catalytic converters increase fuel efficiency by enhancing combustion. B) Catalytic converters reduce vehicle emissions by converting harmful pollutants into less harmful substances. C) Catalytic converters filter out all types of emissions completely. D) Catalytic converters recycle exhaust gases back into the engine. Show Answer Correct Answer: B) Catalytic converters reduce vehicle emissions by converting harmful pollutants into less harmful substances. 9. Stirring the solution increases the rate of dissolution (rate of dissolving). A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 10. A student hiking in a rock area on a mountain notices that wide, deep cracks have formed in some of the large rocks. Some of the cracks are so large that the rocks have broken apart. Which process most likely caused these rocks to crack and creak? A) Erosion by wind. B) Water freezing and thawing. C) Erosion by fast-moving. D) Sediments being deposited. Show Answer Correct Answer: B) Water freezing and thawing. 11. Which set lists key air pollutants commonly monitored for air quality? A) Sulfur dioxide, nitrogen oxides, carbon monoxide, carbon dioxide, and ground-level ozone. B) Water vapor, oxygen, nitrogen gas, and helium. C) Methane, argon, neon, and hydrogen. D) Phosphorus, potassium, calcium, and sodium. Show Answer Correct Answer: A) Sulfur dioxide, nitrogen oxides, carbon monoxide, carbon dioxide, and ground-level ozone. 12. What do scientists think the effect will be of having more greenhouse gases in our atmosphere? A) More cooling of the atmosphere. B) More air in the atmosphere. C) Less air in the atmosphere. D) More warming of the atmosphere. Show Answer Correct Answer: D) More warming of the atmosphere. 13. Weed, insect, and fungus pests can be controlled by applying specific pesticides called (in the correct order) A) DDT, dieldrin, and fungicides. B) Herbicides, and insecticides. C) Fungicides, herbicides, and insecticides. D) Herbicides, insecticides, and fungicides. Show Answer Correct Answer: D) Herbicides, insecticides, and fungicides. 14. Organic compound that is made up of glycerol and 3 fatty acids ..... A) Carbohydrate. B) Lipids. C) Amino acids. D) Proteins. Show Answer Correct Answer: B) Lipids. 15. The irritation of eyes from acid fog is due to: A) SO2 and NO2 dissolved in moisture. B) O3. C) CO2. D) CO. Show Answer Correct Answer: A) SO2 and NO2 dissolved in moisture. 16. What is the importance of the mesosphere? A) It absorbs UV radiation. B) It is the hottest layer. C) It contains the ozone layer. D) It burns up meteors. Show Answer Correct Answer: D) It burns up meteors. 17. A fire uses which gas to burn? A) Carbon dioxide. B) Oxygen. C) Helium. D) None of the above. Show Answer Correct Answer: B) Oxygen. 18. Struktur kristal Body Centered Cubic (BCC) terdapat pada logam ..... A) Besi alfa. B) Tembaga. C) Aluminium. D) Nikel. Show Answer Correct Answer: A) Besi alfa. 19. Which process spreads airborne chemicals by mixing them with air or water? A) Phytoremediation. B) Dispersion (dilution). C) Biodegradation. D) Photolysis. Show Answer Correct Answer: B) Dispersion (dilution). 20. Sulfur Dioxide (SO2) and ..... combine in the atmosphere to create acid rain or fog A) Nitrogen Dioxide (NO2). B) Carbon dioxide (CO2). C) Ozone (O3). D) Carbon monoxide (CO). Show Answer Correct Answer: A) Nitrogen Dioxide (NO2). 21. What was Oil formed from? A) Marine animals. B) Sedimentary rock. C) Petrol. D) None of the above. Show Answer Correct Answer: A) Marine animals. 22. What is the blanket of air in which the Earth is wrapped called? A) Galaxy. B) Oxygen. C) Space. D) Atmosphere. Show Answer Correct Answer: D) Atmosphere. 23. What is the process called when water from plants is released into the atmosphere? A) Condensation. B) Transpiration. C) Evaporation. D) Precipitation. Show Answer Correct Answer: B) Transpiration. 24. Acid deposition increases corrosion of which medical equipment metal? A) Aluminum. B) Titanium. C) Iron. D) Silver. Show Answer Correct Answer: C) Iron. 25. Which of these describes a hazardous household chemical? A) Vinegar. B) Baking soda. C) Water. D) Bleach. Show Answer Correct Answer: D) Bleach. 26. Cannot be broken down through natural processes A) Biodegradable. B) Compostable. C) Recyclable. D) Nonbiodegradable. Show Answer Correct Answer: D) Nonbiodegradable. 27. *Biomagnification is: A) *breakdown of materials by organisms such as earthworms. B) *cleaning up of the environment using plants. C) *breakdown of compounds by sunlight. D) *increase in concentration of a chemical as it moves in the food chain. Show Answer Correct Answer: D) *increase in concentration of a chemical as it moves in the food chain. ← PreviousRelated 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