This quiz works best with JavaScript enabled. Home > Class 6 > Class 6 Science Chapter 15 Air Around Us – Quiz 13 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 6 Science Chapter 15 Air Around Us Quiz 13 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Air is present A) In atmosphere. B) In soil. C) In water of ponds, lakes and seas. D) Everywhere. Show Answer Correct Answer: D) Everywhere. 2. Which is not a property of air? A) It Occupies Space. B) It is a Compound. C) It is Transparent. D) None of the above. Show Answer Correct Answer: B) It is a Compound. 3. Mountaineers carry ..... cylinders with them, while climbing mountains. A) Nitrogen. B) Carbon dioxide. C) Oxygen. D) None of the above. Show Answer Correct Answer: C) Oxygen. 4. Which one of the following has the major part in air A) Nitrogen. B) Oxygen. C) Carbon Dioxide. D) Helium. Show Answer Correct Answer: A) Nitrogen. 5. Which gas do plants use to respire? A) Carbon-Dioxide. B) Hydrogen. C) Oxygen. D) Nitrogen. Show Answer Correct Answer: C) Oxygen. 6. Mountaineer carry oxygen cylinder with them because A) Air becomes heavy while going up. B) Air becomes less while coming back. C) Air becomes less while going up. D) None of the above. Show Answer Correct Answer: C) Air becomes less while going up. 7. We cannot see air but we can ..... it. A) Touch. B) Taste. C) Feel. D) Smell. Show Answer Correct Answer: C) Feel. 8. Properties of oxygen gas is A) Colourless. B) Tasteless. C) Odourless. D) All of these. Show Answer Correct Answer: D) All of these. 9. State true or false Nitrogen supports burning of a candle A) True. B) Speak. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 10. Smoke is produced mainly by burning A) Wood. B) Coal. C) Kerosene. D) All of these. Show Answer Correct Answer: D) All of these. 11. Which gas is responsible for the greenhouse effect? A) Carbon dioxide. B) Oxygen. C) Nitrogen. D) Argon. Show Answer Correct Answer: A) Carbon dioxide. 12. ..... Gas is required for burning A) Oxygen. B) Nitrogen. C) Hydrogen. D) None of the above. Show Answer Correct Answer: A) Oxygen. 13. What kind of gas is neon? A) Trace Gas. B) Noble Gas. C) Combustible Gas. D) None of these. Show Answer Correct Answer: A) Trace Gas. 14. The gas released by green plants during photosynthesis is ..... A) Nitrogen. B) Oxygen. C) Carbon dioxde. D) Argon. Show Answer Correct Answer: C) Carbon dioxde. 15. Windmill rotates because of ..... A) Air. B) Water. C) Electricity. D) Sun Rays. Show Answer Correct Answer: A) Air. 16. The oxygen present in the air is used for A) Respiration. B) Extinguishing fire. C) Burning. D) Both (i) and (iii). Show Answer Correct Answer: D) Both (i) and (iii). 17. What is the percentage of oxygen in the air? A) 17%. B) 52%. C) 21%. D) 84%. Show Answer Correct Answer: C) 21%. 18. What is the lightest gas on Earth's atmosphere? A) Helium. B) Hydrogen. C) Oxygen. D) Carbon Dioxide. Show Answer Correct Answer: B) Hydrogen. 19. A gas produced by animals during respiration that plants use for photosynthesis. A) Oxygen. B) Toots. C) Carbon dioxide. D) Water vapor. Show Answer Correct Answer: C) Carbon dioxide. 20. Major Part of air is covered by which gas? A) Oxygen. B) Carbon-Dioxide. C) Nitrogen. D) Neon. Show Answer Correct Answer: C) Nitrogen. 21. The gas present in the air that turns lime water milky is ..... A) Nitrogen. B) Carbon dixode. C) Oxygen. D) Water vapour. Show Answer Correct Answer: D) Water vapour. 22. What are the percentages of the main gases on Earth? A) 78% oxygen, 21% nitrogen and 1% other. B) 78% other, 21% oxygen and 1% nitrogen. C) 78% nitrogen, 21% oxygen and 1% other. D) 95% carbon dioxide and 5% oxygen. Show Answer Correct Answer: C) 78% nitrogen, 21% oxygen and 1% other. 23. Plants respire only at night? A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 24. The layers of the gases that surround the Earth is the ..... A) Atmosphere. B) Lithosphere. C) Hydrosphere. D) Mesosphere. Show Answer Correct Answer: A) Atmosphere. 25. Which of the following processes need oxygen? A) Combustion. B) Respiration. C) Oxidation. D) All of Above. Show Answer Correct Answer: D) All of Above. ← PreviousNext →Related QuizzesClass 6 Science Chapter 15 Air Around Us Quiz 1Class 6 Science Chapter 15 Air Around Us Quiz 2Class 6 Science Chapter 15 Air Around Us Quiz 3Class 6 Science Chapter 15 Air Around Us Quiz 4Class 6 Science Chapter 15 Air Around Us Quiz 5Class 6 Science Chapter 15 Air Around Us Quiz 6Class 6 Science Chapter 15 Air Around Us Quiz 7Class 6 Science Chapter 15 Air Around Us Quiz 8Class 6 Science Chapter 15 Air Around Us Quiz 9Class 6 Science Chapter 15 Air Around Us Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books