This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part Ii) Chapter 14 Environmental Chemistry – Quiz 14 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part Ii) Chapter 14 Environmental Chemistry Quiz 14 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What does effluent mean? A) A body of water has too much nutrients. B) A body of water is overpopulated with pathogens. C) Sewage and other wastes disposed into a body of water. D) A body of water is too acidic or basic. Show Answer Correct Answer: C) Sewage and other wastes disposed into a body of water. 2. What is the guideline level for dissolved oxygen in water? A) 8-10 mg/L. B) 0-2 mg/L. C) 20-30 mg/L. D) 50-60 mg/L. Show Answer Correct Answer: A) 8-10 mg/L. 3. What is a debated concern regarding incinerators? A) Their efficiency in recycling. B) Their safety. C) Their ability to reduce landfill waste. D) Their cost-effectiveness. Show Answer Correct Answer: B) Their safety. 4. What is the main source of lead contamination in the atmosphere? A) Deforestation. B) Burning of fossil fuels. C) Industrial waste. D) Volcanic eruptions. Show Answer Correct Answer: B) Burning of fossil fuels. 5. The macronutrient that is essential for growth, repair and keeping cells healthy. A) Fats. B) Carbohydrates. C) Proteins. D) Dietary fiber. Show Answer Correct Answer: C) Proteins. 6. Which of the following conditions in drinking water causes methemoglobinemia?(a) > 50 ppm of chloride(b) > 50 ppm of nitrate(c) > 50 ppm of lead(d) > 100 ppm of sulphate A) A. B) B. C) C. D) D. Show Answer Correct Answer: B) B. 7. True or False. The acidity of a substance is based on the concentration of carbon atoms that it has. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 8. The products of incomplete combustion are ..... A) Carbon dioxide and water. B) Carbon monoxide and water. C) Carbon and oxygen. D) None of the above. Show Answer Correct Answer: B) Carbon monoxide and water. 9. The dry deposition rate depends on: A) Rain intensity. B) Wind speed and particle size. C) Cloud cover. D) Solar radiation only. Show Answer Correct Answer: B) Wind speed and particle size. 10. Which type of weathering can alter a rock through vegetation growth and animal disturbance? A) Mechanical. B) Biological. C) Chemical. D) None of the above. Show Answer Correct Answer: B) Biological. 11. A ..... haze is associated with industrial smog, while a ..... haze is associated with photochemical smog. A) Gray, Yellowish. B) Yellowish, Gray. C) All the above. D) None of the above. Show Answer Correct Answer: A) Gray, Yellowish. 12. *If blue litmus paper stays blue and red litmus paper changes blue, what can you determine A) *pH. B) *it is an acid. C) *it is a base. D) *it is neutral. Show Answer Correct Answer: C) *it is a base. 13. Which compound is mainly responsible for the depletion of ozone layer? A) CO2. B) CH4. C) CH3OH. D) CF2Cl2. Show Answer Correct Answer: D) CF2Cl2. 14. Some pollutants are difficult to break down and therefore accumulate in the environment. These are termed A) Non-persistent pollutants. B) Persistent pollutants. C) Chronic pollutants. D) Chemical indicators. Show Answer Correct Answer: B) Persistent pollutants. 15. Type of reaction that occurs when a strong acid is mixed with a strong base ..... A) Combustion. B) Neutralization. C) Single replacement. D) Double Replacement. Show Answer Correct Answer: B) Neutralization. 16. A displacement reaction will occur when ..... A) A more reactive metal displaces a less reactive metal from its compound. B) A less reactive metal displaces a more reactive metal from its compound. C) Displacement only occurs when two of the same metals are reacted. D) Displacement reactions will only occur in metals above iron in the reactivity series. Show Answer Correct Answer: A) A more reactive metal displaces a less reactive metal from its compound. 17. This is an important inorganic nutrient which helps with our blood. A) Calcium. B) Iron. C) Carbon dioxide. D) Copper. Show Answer Correct Answer: B) Iron. 18. Which of the following best describes biomagnification? A) The breakdown of organic matter by bacteria. B) The increase in concentration of a substance in organisms at higher trophic levels. C) The movement of water through the environment. D) The conversion of ammonia to nitrate. Show Answer Correct Answer: B) The increase in concentration of a substance in organisms at higher trophic levels. 19. What percentage of solar energy does a plant typically use in photosynthesis? A) 50%. B) 25%. C) 10%. D) 2%. Show Answer Correct Answer: C) 10%. 20. Bagaimana karbon dioksida berkontribusi terhadap pemanasan global? A) Karbon dioksida adalah sumber utama energi terbarukan. B) Karbon dioksida mendinginkan atmosfer dengan memantulkan sinar matahari. C) Karbon dioksida tidak berpengaruh pada suhu global. D) Karbon dioksida berkontribusi terhadap pemanasan global dengan menjebak panas di atmosfer, meningkatkan efek rumah kaca. Show Answer Correct Answer: D) Karbon dioksida berkontribusi terhadap pemanasan global dengan menjebak panas di atmosfer, meningkatkan efek rumah kaca. 21. What prevents Rusting A) Painting, Oiling, Galvinising. B) Washing with water. C) Keeping it damp. D) Adding salt water. Show Answer Correct Answer: A) Painting, Oiling, Galvinising. 22. What is the concentration of a solution in parts per million if 0.02 grams of NaCl is dissolved in 1000 grams of water? A) 2 ppm. B) 20 ppm. C) 200 pm. D) 0.2 ppm. Show Answer Correct Answer: B) 20 ppm. 23. Why might the consequences of many chemicals not be immediately realized? A) They are always visible right away. B) They are only harmful to pests. C) They may take time to show their effects. D) They are completely harmless. Show Answer Correct Answer: C) They may take time to show their effects. 24. Pada proses KA-ANDAL, analis kimia berperan penting karena ..... A) Menentukan jenis bahan kimia yang boleh dipakai industri. B) Merancang rencana sampling parameter seperti pH, BOD, COD secara ilmiah. C) Memutuskan layak tidaknya suatu proyek berjalan. D) Menentukan sanksi pelanggaran AMDAL. Show Answer Correct Answer: B) Merancang rencana sampling parameter seperti pH, BOD, COD secara ilmiah. 25. Which of the following is not true about Iodine poisoning? A) It is a weak irritant. B) It causes brown staining of the angle of jaw. C) Causes metabolic acidosis. D) Causes Hypersensitivity reactions. Show Answer Correct Answer: A) It is a weak irritant. ← 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