This quiz works best with JavaScript enabled. Home > Class 9 > Class 9 Science Chapter 2 Is Matter Around Us Pure – Quiz 12 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 9 Science Chapter 2 Is Matter Around Us Pure Quiz 12 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Pick the heterogeneous mixture among the following A) Smoke. B) Brass. C) Sugar solution. D) Salt solution. Show Answer Correct Answer: A) Smoke. 2. Compounds: A) Are the same as mixtures?. B) Can be separated by their physical properties. C) Contain only type of element. D) Are different kinds of atoms chemically combined with each other?. Show Answer Correct Answer: D) Are different kinds of atoms chemically combined with each other?. 3. Find thehomogeneous group from the following materials:Soda water, wood, air, soil, vinegar, filtered tea A) Wood, soil, filtered tea. B) Air, vinegar, filtered tea. C) Wood, soil, air,. D) Soda water, air, vinegar. Show Answer Correct Answer: D) Soda water, air, vinegar. 4. The amount of the solute present in the saturated solution at this temperature is called its ..... A) Unsaturation. B) Diffusion. C) Collusion. D) Solubility. Show Answer Correct Answer: D) Solubility. 5. How is salt separated from sea water without any impurities? A) Evaporeation. B) Evaporation. C) Crystallisation. D) Crystallization. Show Answer Correct Answer: D) Crystallization. 6. Which of the following is a mixture? A) Air. B) Ice. C) Hydrochloric acid. D) Mercury. Show Answer Correct Answer: A) Air. 7. Which of the following is an example of a heterogeneous substance? A) Bottled water. B) Table salt. C) Pieces of copper. D) Candle. Show Answer Correct Answer: D) Candle. 8. Boiling point of Nitrogen is ..... deg C. A) -183. B) -186. C) -196. D) -190. Show Answer Correct Answer: C) -196. 9. The particles of colloid are in state of continuous zig-zag motion. It is known as ..... A) Kinetic energy. B) Diffusion. C) Osmosis. D) Brownian motion. Show Answer Correct Answer: D) Brownian motion. 10. What type of mixture separates upon standing? A) Solution. B) Alloy. C) Colloid. D) Suspension. Show Answer Correct Answer: D) Suspension. 11. ..... MAKES IT POSSIBLE TO STUDY AND USE THE INDIVIDUAL COMPONENTS OF A MIXTURE. A) BASIC MICROSCOPE. B) ELECTRON MICROSCOPE. C) SIZE OF PARTICLES. D) SEPERATION TECHNIQUES. Show Answer Correct Answer: D) SEPERATION TECHNIQUES. 12. Which changes of state occur during distillation? A) Boiling followed by filtration. B) Boiling followed by condensation. C) Condensation followed by boiling. D) Filtration followed by boiling. Show Answer Correct Answer: B) Boiling followed by condensation. 13. , brass is a mixture of approximately ..... zinc and 70% copper. A) 30%. B) 40%. C) 60%. D) 100%. Show Answer Correct Answer: A) 30%. 14. One of the following does not undergo sublimation. This one is A) Iodine. B) Camphor. C) Sodium chloride. D) Ammonium chloride. Show Answer Correct Answer: C) Sodium chloride. 15. What Happens to the vapours of the liquid in fractionating column? A) Condense. B) Solidify. C) Cool. D) Both 1 & 3. Show Answer Correct Answer: D) Both 1 & 3. 16. Q-3 A solution has a ..... & a ..... as it's components. A) Solute & Solvent. B) True & Colloid. C) Mixture & Solution. D) All of the above. Show Answer Correct Answer: A) Solute & Solvent. 17. A mixture of dye in a volatile liquid can be separated by? A) Evaporation. B) Sedimentation. C) Chromatography. D) Filtration. Show Answer Correct Answer: C) Chromatography. 18. What is an element? A) A pure substance that cannot be broken down. B) Two atoms bonded together. C) Two or more different types of atoms bonded together. D) An molecule with an unequal distribution of charge. Show Answer Correct Answer: A) A pure substance that cannot be broken down. 19. Identify the dispersed phase and dispersed medium in the Shaving cream an example of Foam Colloid. A) Dispersed phase = LiquidDispersed Medium = Gas. B) Dispersed phase = LiquidDispersed Medium = Liquid. C) Dispersed phase = GasDispersed Medium = Gas. D) Dispersed phase = GasDispersed Medium = Liquid. Show Answer Correct Answer: D) Dispersed phase = GasDispersed Medium = Liquid. 20. Assertion:True solution exhibits Tyndall effect.Reason:Particles are very large in size. A) Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A). B) Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A). C) Assertion (A) is true but reason (R) is false. D) Assertion (A) is false but reason (R) is true. Show Answer Correct Answer: D) Assertion (A) is false but reason (R) is true. 21. Cheese is an emulsion type of colloid. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 22. Made up of one kind of matter and has a definite set of properties A) Compound. B) Atom. C) Mixture. D) Pure substance. Show Answer Correct Answer: D) Pure substance. 23. In which of the following-the solute is liquid but the solvent is solid? A) Air containing moisture. B) Adsorption of H$_{2}$ gas in Pd. C) Zinc amalgam. D) Homogeneous mixture of water and ethanol. Show Answer Correct Answer: C) Zinc amalgam. 24. ..... is a substance composed of two or more elements, chemically combined with one another in a fixed proportion. A) Alloys. B) Suspension. C) Element. D) Compound. Show Answer Correct Answer: D) Compound. 25. How many free surfaces exist in the case of solids? A) 1. B) 2. C) 3. D) Infinitely many. Show Answer Correct Answer: D) Infinitely many. ← PreviousNext →Related QuizzesClass 9 Science Chapter 2 Is Matter Around Us Pure Quiz 1Class 9 Science Chapter 2 Is Matter Around Us Pure Quiz 2Class 9 Science Chapter 2 Is Matter Around Us Pure Quiz 3Class 9 Science Chapter 2 Is Matter Around Us Pure Quiz 4Class 9 Science Chapter 2 Is Matter Around Us Pure Quiz 5Class 9 Science Chapter 2 Is Matter Around Us Pure Quiz 6Class 9 Science Chapter 2 Is Matter Around Us Pure Quiz 7Class 9 Science Chapter 2 Is Matter Around Us Pure Quiz 8Class 9 Science Chapter 2 Is Matter Around Us Pure Quiz 9Class 9 Science Chapter 2 Is Matter Around Us Pure Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books