This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part Ii) Chapter 14 Environmental Chemistry – Quiz 10 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part Ii) Chapter 14 Environmental Chemistry Quiz 10 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The thinning of the ozone layer is also known as the A) Ozone hole. B) Ozone gap. C) Ozone space. D) Ozone void. Show Answer Correct Answer: A) Ozone hole. 2. A mineral that the body requires in more than 100mg/day doses in order to maintain health A) Trace element. B) Micromineral. C) Macromineral. D) Substantial element. Show Answer Correct Answer: C) Macromineral. 3. Which practice contributes to air quality improvement? A) Using more fossil fuels. B) Planting more trees. C) Cutting down forests. D) Increasing industrial emissions. Show Answer Correct Answer: B) Planting more trees. 4. Why is all precipitation naturally slightly acidic? A) Due to pollution from industry. B) Due to CO2 in the atmosphere dissolving in the water. C) Due to population increase of people. D) Due to water being highly acidic. Show Answer Correct Answer: B) Due to CO2 in the atmosphere dissolving in the water. 5. Which type of soil can hold the greatest amount of water? A) Sand. B) Silt. C) Clay. D) Loam. Show Answer Correct Answer: C) Clay. 6. Worldwide, temperatures have been increasing for more than 100 years. Is this evidence of global warming? A) Yes. B) No. C) All the above. D) None of the above. Show Answer Correct Answer: A) Yes. 7. In filtration, the clear liquid which passes through the filter paper is called A) Filter paper. B) Filtrate. C) Filter. D) Filtration. Show Answer Correct Answer: B) Filtrate. 8. What is the correct observation for the chemical test for the presence of water using white anhydrous copper(II) sulfate? A) The white powder turns pink. B) The white powder turns blue. C) The powder gives off heat and steam. D) The powder dissolves and becomes a clear solution. Show Answer Correct Answer: B) The white powder turns blue. 9. Filtration can remove insoluble impurities from water. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 10. Which is a MAJOR cause of acid rain? A) Spraying pesticides on crops. B) Burning fossil fuels for energy. C) Dumping sewage in rivers. D) Using Nuclear power stations. Show Answer Correct Answer: B) Burning fossil fuels for energy. 11. The nitrogen cycle includes the following three compounds: A) Nitrates, nitrogen oxide, and ammonia. B) Nitrates, urea, and nitrogen oxide. C) Nitrates, ammonia, and nitric acid. D) Nitrates, ammonia, and urea. Show Answer Correct Answer: D) Nitrates, ammonia, and urea. 12. What happens to natural gas that does not contain hydrogen sulfide? A) It is considered "sweet" gas. B) It is considered "sour" gas. C) It is discarded as waste. D) It is converted into liquid form. Show Answer Correct Answer: A) It is considered "sweet" gas. 13. Which of the following releases carbon dioxide into the atmosphere? A) Photosynthesis. B) Feeding. C) Fossilisation. D) Combustion. Show Answer Correct Answer: D) Combustion. 14. Which of the following is a primary greenhouse gas responsible for global warming? A) Nitrogen ( $N_2$. B) Carbon dioxide ( $CO_2$. C) Oxygen ( $O_2$. D) Ozone ( $O_3$. Show Answer Correct Answer: B) Carbon dioxide ( $CO_2$. 15. This level of dissolved oxygen indicates that 8 mL of oxygen is found in A) 1 000 000 mL of water. B) 10 000 mL of water. C) 1 000 mL of water. D) 100 mL of water. Show Answer Correct Answer: A) 1 000 000 mL of water. 16. Why are alloys, like stainless steel, generally harder than pure metals? A) The layers of atoms in alloys are all the same size. B) The different-sized atoms in an alloy disrupt the regular layers, making it harder for them to slide. C) Alloys have more delocalised electrons, which bind the ions more tightly. D) Pure metals are mixtures, while alloys are compounds. Show Answer Correct Answer: B) The different-sized atoms in an alloy disrupt the regular layers, making it harder for them to slide. 17. What is the role of the balloon in the bioremediation process? A) To show gas production. B) To measure oil volume. C) To convert ounces to cubic centimeters. D) To calculate cross-sectional area. Show Answer Correct Answer: A) To show gas production. 18. Voltaic cells are the same as which cells? A) Electrolytic. B) Anode. C) Electron. D) Galvanic. Show Answer Correct Answer: D) Galvanic. 19. Permen LHK No. 4 Tahun 2021 mengubah sistem perizinan AMDAL dengan pendekatan berbasis risiko. Dampak potensial pendekatan ini adalah ..... A) Proyek risiko tinggi tidak lagi memerlukan AMDAL. B) Efisiensi proses tanpa mengurangi tanggung jawab lingkungan. C) Penghapusan seluruh dokumen RKL dan RPL. D) Pelibatan masyarakat tidak diwajibkan. Show Answer Correct Answer: B) Efisiensi proses tanpa mengurangi tanggung jawab lingkungan. 20. What is a major effect of carbon dioxide in high concentrations? A) Increased oxygen levels. B) Global warming. C) Decreased respiratory disorders. D) Enhanced plant growth. Show Answer Correct Answer: B) Global warming. 21. *Cattails are used to absorb chemicals in a pond. This is an example of: A) *phytoremediation. B) *photosynthesis. C) *photolysis. D) *biodegradation. Show Answer Correct Answer: A) *phytoremediation. 22. Which is an example of a renewable energy source? A) Coal. B) Solar panels. C) Natural gas. D) Oil. Show Answer Correct Answer: B) Solar panels. 23. The name rock is given when it is broken down into smaller pieces. A) Texture. B) Weathering. C) Sediment. D) Erosion. Show Answer Correct Answer: C) Sediment. 24. Which of these is the right range of BOD value from less to highly polluted water? A) 3ppm-9ppm or more. B) 0ppm-12ppm. C) 4ppm-20ppm or more. D) 5ppm-17ppm or more. Show Answer Correct Answer: D) 5ppm-17ppm or more. 25. Which action can reduce global warming? A) Burning more coal. B) Increasing deforestation. C) Reducing carbon emissions. D) Using more gasoline. Show Answer Correct Answer: C) Reducing carbon emissions. ← 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 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books