This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part Ii) Chapter 14 Environmental Chemistry – Quiz 2 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part Ii) Chapter 14 Environmental Chemistry Quiz 2 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. A neutralization reaction between an acid and a base creates A) A salt. B) Water. C) Both Salt and Water. D) An acidic solution. Show Answer Correct Answer: C) Both Salt and Water. 2. What is more dangerous LD50 of A) 0.04 ppm. B) 1.29 ppm. C) 1.04 ppm. D) 0.40 ppm. Show Answer Correct Answer: A) 0.04 ppm. 3. These are all important greenhouse gases. A) Oxygen, hydrogen and nitrogen. B) Carbon dioxide, helium and clouds. C) Carbon dioxide, water vapour and methane. D) Methane, ethane and hydrogen. Show Answer Correct Answer: C) Carbon dioxide, water vapour and methane. 4. Which of the following matching has error? A) Chipko Movement-1975. B) Save Silent Valley-1978. C) On the origin of Species-1859. D) An Essay on the principle of Population-1798. Show Answer Correct Answer: A) Chipko Movement-1975. 5. Proteins that help control chemical reactions in organisms ..... A) Enzymes. B) Amino acids. C) Nucleic acids. D) Substrates. Show Answer Correct Answer: A) Enzymes. 6. A base is best characterized as: A) A compound that forms a solution with a pH less than 7 and tastes sour. B) A compound that dissolves in water to form a solution with a pH greater than 7; often feels slippery and can be corrosive. C) A chemical compound containing carbon, such as carbohydrates and proteins. D) A process by which plants use energy to move nutrients against a gradient. Show Answer Correct Answer: B) A compound that dissolves in water to form a solution with a pH greater than 7; often feels slippery and can be corrosive. 7. What process converts glucose back into carbon dioxide and water while releasing energy? A) Photosynthesis. B) Cellular respiration. C) Decomposition. D) Fermentation. Show Answer Correct Answer: B) Cellular respiration. 8. In ..... when the water is heated then the soluble salts turns into insoluble ones and removed by filtration. A) Temporary hardness. B) Permanent hardness. C) Non-carbonate. D) Non-alkaline. Show Answer Correct Answer: A) Temporary hardness. 9. In the catalytic converter, which gas is removed by oxidation? A) Carbon monoxide. B) Carbon dioxide. C) Nitrogen dioxide. D) Nitrogen. Show Answer Correct Answer: A) Carbon monoxide. 10. What are all living things made of and depend on to survive? A) Water. B) Chemicals. C) Air. D) Soil. Show Answer Correct Answer: B) Chemicals. 11. What is the most toxic form of mercury? A) Methylmercury. B) Mercury (II). C) Mercuric oxide. D) Mercury (I). Show Answer Correct Answer: A) Methylmercury. 12. Which disease is associated with cadmium poisoning in Japan? A) Kawasaki disease. B) Huntington's disease. C) Itai-Itai disease. D) Minamata disease. Show Answer Correct Answer: C) Itai-Itai disease. 13. What is the most environmentally friendly way to dispose of household chemicals like cleaning agents? A) Pour them down the drain. B) Mix them with regular trash. C) Take them to a hazardous waste collection site. D) Burn them in an open area. Show Answer Correct Answer: C) Take them to a hazardous waste collection site. 14. How do changes in the ocean affect coral reefs? A) Warm, acidic water causes coral to bleach and then die. B) Coral reefs grow faster in warmer water. C) Warmer water supports fish that like to eat coral, destroying the reefs. D) Coral reefs aren't affected by changes in temperature and acidity. Show Answer Correct Answer: A) Warm, acidic water causes coral to bleach and then die. 15. Which layer of the Earth is primarily composed of solid iron and nickel? A) Crust. B) Mantle. C) Outer core. D) Inner core. Show Answer Correct Answer: D) Inner core. 16. )Intermediate compound formed in the depletion of O3 layer by chlorofluoro carbons is A) O2F2. B) OCl. C) OF2. D) Cl2O. Show Answer Correct Answer: B) OCl. 17. Which of the following properties is typical of most metals? A) They are brittle. B) They have low melting points. C) They conduct electricity. D) They do not react with oxygen. Show Answer Correct Answer: C) They conduct electricity. 18. What is a pesticide? A) A chemical substance that destroys or deters pests. B) A type of plant. C) A type of insect. D) A type of food. Show Answer Correct Answer: A) A chemical substance that destroys or deters pests. 19. The fourth step of the water treatment process is ..... A) Coagulation. B) Disinfection. C) Filtration. D) Sedimentation. E) Flocculation. Show Answer Correct Answer: C) Filtration. 20. What is the main product formed along with carbon dioxide in the reaction? A) Methanol. B) Ethanol. C) Propanol. D) Butanol. Show Answer Correct Answer: B) Ethanol. 21. The metals of Group 1 are commonly called the A) Transition metals. B) Alkaline earth metals. C) Lanthanides. D) Alkali Metals. Show Answer Correct Answer: D) Alkali Metals. 22. What role does the ozone layer naturally play in Earth's atmosphere? A) It traps heat to intensify the greenhouse effect. B) It absorbs harmful ultraviolet radiation, protecting life. C) It produces carbon dioxide to stabilize climate. D) It reflects visible light to cool the planet. Show Answer Correct Answer: B) It absorbs harmful ultraviolet radiation, protecting life. 23. The use of living organisms to help clean up areas of pollution is known as A) Bioaccumulation. B) Bioreaction. C) Bioremediation. D) Biodegradation. Show Answer Correct Answer: C) Bioremediation. 24. Rodenticides often interfere with which vitamin in the body? A) Vitamin A. B) Vitamin B. C) Vitamin C. D) Vitamin K. Show Answer Correct Answer: D) Vitamin K. 25. What is the pH value of rain water and at what value does the acid rain form? A) 4.6, Above 4.6. B) 5.6, Below 5.6. C) 4.6, Below 4.6. D) 5.6, Above 5.6. Show Answer Correct Answer: B) 5.6, Below 5.6. ← PreviousNext →Related QuizzesClass 11 Chemistry (Part Ii) Chapter 14 Environmental Chemistry Quiz 1Class 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 10Class 11 Chemistry (Part Ii) Chapter 14 Environmental Chemistry Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books