This quiz works best with JavaScript enabled. Home > Class 9 > Class 9 Science Chapter 2 Is Matter Around Us Pure – Quiz 2 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 9 Science Chapter 2 Is Matter Around Us Pure Quiz 2 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. True or False:There are only two elements which remain liquid at room temperature. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 2. Which separation techniques will you apply for the separation of the Iron pins from sand? A) Centrifugation. B) Magnetic separation. C) Filtration. D) Evaporation. Show Answer Correct Answer: B) Magnetic separation. 3. The method used in washing machines to squeeze out water from wet clothes A) Sublimation. B) Distillation. C) Centrifugation. D) Chromatography. Show Answer Correct Answer: C) Centrifugation. 4. Homogeneous mixtures can be called like this A) True solution. B) Colloids. C) Suspension. D) None of the above. Show Answer Correct Answer: A) True solution. 5. Colloids get separated by a special technique called ..... A) Filteration. B) Evaporation. C) Condensation. D) Centrifugation. Show Answer Correct Answer: D) Centrifugation. 6. Two miscible liquids having different boiling points can be separated by A) Sublimation. B) Evaporation. C) Fractional distillation. D) Loading. Show Answer Correct Answer: C) Fractional distillation. 7. Which flow chart correctly describes a homogeneous material? A) Unknown-density-3 layers. B) Unknown-filtration-two substances. C) Unknown-magnet-two substances. D) Unknown-boiling-one temperature. Show Answer Correct Answer: D) Unknown-boiling-one temperature. 8. Glass is a ..... Type of colloid. A) Foam. B) Emulsion. C) Sol. D) None of the above. Show Answer Correct Answer: C) Sol. 9. A sample contains two substances and has uniform properties. The sample is: A) A compound. B) A heterogeneous mixture. C) An element. D) A homogenous mixture. Show Answer Correct Answer: D) A homogenous mixture. 10. It is a good conductor of heat. A) Non metal. B) Metal. C) Metalloids. D) Graphite. Show Answer Correct Answer: B) Metal. 11. By which method can potadh alum be purified? A) Evaporation. B) Crystallisation. C) Centrifugation. D) Filtration. Show Answer Correct Answer: B) Crystallisation. 12. The continuous zig-zag movement of colloidal particles in a dispersion medium is called A) Dispersion. B) Tyndall effect. C) Brownian movement. D) Oscillation. Show Answer Correct Answer: C) Brownian movement. 13. Mixture can be A) Homogeneous. B) Heterogeneous. C) Both (a) and (b). D) Pure substance. Show Answer Correct Answer: C) Both (a) and (b). 14. Which one of the following four statements is incorrect? A) All elements are solid at room temperature. B) Water is not an element. C) Iron contains only one type of atom. D) The element Mercury is a liquid at room temperature. Show Answer Correct Answer: A) All elements are solid at room temperature. 15. On converting 308K, 329K and 391K to Celsius scale, the correct sequence of temperature will be A) 33$^{0}$C, 56$^{0}$C, 118$^{0}$C. B) 35$^{0}$C, 56$^{0}$C, 119$^{0}$C. C) 35$^{0}$C, 56$^{0}$C, 118$^{0}$C. D) 56$^{0}$C, 119$^{0}$C, 35$^{0}$C. Show Answer Correct Answer: C) 35$^{0}$C, 56$^{0}$C, 118$^{0}$C. 16. A saturated salt water solution was heated and allowed to cool without adding any more salt. What will happen? A) Some salt appears to settle at the bottom. B) Some more salt can be dissolved now. C) No change takes place. D) Both A or B. Show Answer Correct Answer: C) No change takes place. 17. Air is ..... mixture. A) Heterogeneous. B) Gas. C) Solid. D) Homogeneous. Show Answer Correct Answer: D) Homogeneous. 18. Separation makes it possible to study and use the individual components of a mixture A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 19. Pumic stone is a solid sol. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 20. How will you seperate the components of sugar solution? A) Evaporation. B) Crystallization. C) Filteration. D) Chromatography. Show Answer Correct Answer: B) Crystallization. 21. Alloys are ..... mixtures of metals and cannot be separated into their components by physical methods A) HOMOGENOUS. B) HETEROGENOUS. C) All the above. D) None of the above. Show Answer Correct Answer: A) HOMOGENOUS. 22. How would O2 be qualified. Check all answers that apply. A) Atom. B) Molecule. C) Compound. D) None of the above. Show Answer Correct Answer: B) Molecule. 23. During summer days, water kept in an earthen pot becomes cool because of the phenomenon of A) Diffusion. B) Transpiration. C) Osmosis. D) Evaporation. Show Answer Correct Answer: D) Evaporation. 24. Q-8 Foam has ..... D.P & ..... D.M? A) Gas & Solid. B) Liquid & Gas. C) Gas & Liquid. D) Liquid & Liquid. Show Answer Correct Answer: C) Gas & Liquid. 25. Rusting of iron is a chemical change. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. ← PreviousNext →Related QuizzesClass 9 Science Chapter 2 Is Matter Around Us Pure Quiz 1Class 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 10Class 9 Science Chapter 2 Is Matter Around Us Pure Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books