This quiz works best with JavaScript enabled. Home > Cbse > Class 9 > Science > Matter In Our Surroundings > Class 9 Science Chapter 1 Matter In Our Surroundings – Quiz 3 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 9 Science Chapter 1 Matter In Our Surroundings Quiz 3 (13 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What will be the impact on the density of matter if we heat or decreases the pressure of the matter? A) Increase. B) Decrease. C) First increase then decreases. D) First decreases then increase. E) None of the above. Show Answer Correct Answer: B) Decrease. 2. Convert 100 degree Celsius to kelvin scale A) 301.45. B) 273.15. C) 373.15. D) None of the above. Show Answer Correct Answer: C) 373.15. 3. When heat is constantly supplied by a burner to boiling water, then the temperature of water during vapourisation A) Rises very slowly. B) Rises rapidly until steam is produced. C) First rises and then becomes constant. D) Does not rise at all. Show Answer Correct Answer: D) Does not rise at all. 4. Which of the following substances does not show phenomenon of sublimation? A) Ammnium chloride. B) Iodine. C) Sodium Chloride. D) Camphor. Show Answer Correct Answer: C) Sodium Chloride. 5. Conversion of dry ice into vapour directly A) Deposition. B) Sublimation. C) Fusion. D) None of the above. Show Answer Correct Answer: B) Sublimation. 6. Which of the following describes the liquid phase? A) It has a definite shape and a definite volume. B) It has a definite shape but not definite volume. C) It has a definite volume but not a definite shape. D) It has neither a definite shape nor a definitevolume. Show Answer Correct Answer: C) It has a definite volume but not a definite shape. 7. Fixed shape, fixed volume, negligible compressibility.Which state of matter is this A) Solid. B) Gas. C) Liquid. D) None of the above. Show Answer Correct Answer: A) Solid. 8. Do you think the particles of matter are continuously moving? A) Yes. B) No. C) All the above. D) None of the above. Show Answer Correct Answer: A) Yes. 9. Which is an example of bulk phenomenon? A) Evaporation. B) Sublimation. C) Condensation. D) Boiling. Show Answer Correct Answer: D) Boiling. 10. More the humidity in air A) Less the rate of evaporation. B) More the rate of evaporation. C) All the above. D) None of the above. Show Answer Correct Answer: A) Less the rate of evaporation. 11. Select a non metal from the following. A) Gold. B) Platinum. C) Diamond. D) Silver. Show Answer Correct Answer: C) Diamond. 12. The change of solid state to gaseous state without changing to liquid state is known as? A) Sublimation. B) Condensation. C) Evaporation. D) Fusion. Show Answer Correct Answer: A) Sublimation. 13. We wear cotton clothes in summer because A) They do not harm our skin. B) They are light weight. C) They absorb sweat, which on evaporation causes cooling. D) They are cheap. Show Answer Correct Answer: C) They absorb sweat, which on evaporation causes cooling. ← PreviousRelated QuizzesScience QuizzesClass 9 QuizzesClass 9 Science Chapter 1 Matter In Our Surroundings Quiz 1Class 9 Science Chapter 1 Matter In Our Surroundings Quiz 2 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books