This quiz works best with JavaScript enabled. Home > Class 9 > Class 9 Science Chapter 2 Is Matter Around Us Pure – Quiz 10 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 9 Science Chapter 2 Is Matter Around Us Pure Quiz 10 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. How will you separate oxygen from a mixture of liquid air? A) Centrifugation. B) Separating funnel. C) Fractional distillation. D) Distillation. Show Answer Correct Answer: C) Fractional distillation. 2. What are the 3 states of mater A) Air solid gas. B) Matter. C) Solid liquid gas. D) Rada. Show Answer Correct Answer: C) Solid liquid gas. 3. ASSERTION:CONCENTRATION DEPENDS ON ( MASS OF SOLUTE / MASS OF SOLUTION X 100 )REASON:IT IS A FORMULA USED TO FIND CONCENTRATION OF A SOLUTION A) A AND R ARE TRUE AND R IS THE CORRECT EXPLANATION OF A. B) A AND R ARE TRUE AND R IS NOT THE CORRECT EXPLANATION OF A. C) A IS FALSE AND R IS TRUE. D) R IS FALSE AND A IS FALSE. Show Answer Correct Answer: A) A AND R ARE TRUE AND R IS THE CORRECT EXPLANATION OF A. 4. Melting butter is an example of A) Physical change. B) Chemical change. C) All the above. D) None of the above. Show Answer Correct Answer: A) Physical change. 5. Sodium carbonate is A) An element. B) A compound. C) A mixture. D) None of these. Show Answer Correct Answer: B) A compound. 6. Particles size of solution A) Less than 1 nm. B) More than 1 nm. C) Between 1 and 1000 nm. D) More than 1000 nm. Show Answer Correct Answer: A) Less than 1 nm. 7. How is iron separated from its ore? A) Filtration. B) Separating funnel. C) Centrifugation. D) Evaporation. Show Answer Correct Answer: B) Separating funnel. 8. Which has the largest particles? A) Solution. B) Colloids. C) Suspension. D) None of the above. Show Answer Correct Answer: C) Suspension. 9. A mixture of methyl alcohol and acetone can be separated by: A) Distillation. B) Fractional distillation. C) Fractional distillation. D) Distillation under reduced pressure. Show Answer Correct Answer: B) Fractional distillation. 10. Which of these show the tyndall effect? A) Solutions. B) Suspensions. C) Colloids. D) Any heterogeneous mixtures. Show Answer Correct Answer: C) Colloids. 11. The Tyndall Effect is not visible in which of the following? A) Solution. B) Suspension. C) Colloid. D) Heterogeneous Mixture. Show Answer Correct Answer: A) Solution. 12. When the same amount of Zn is treated separately with excess of dil. H$_{2}$SO4 and excess of NaOH, what is the ratio of volumes of H$_{2}$ evolved? A) 1:1. B) 1:2. C) 2:1. D) 9:4. Show Answer Correct Answer: A) 1:1. 13. You are given a black ink and you want to find out the different dyes present in it. Which separation technique will you use? A) Centrifugation technique. B) Separating cylinder technique. C) Chromatography technique. D) Fractional distillation technique. Show Answer Correct Answer: C) Chromatography technique. 14. Which of the following is jelly? A) Ghee. B) Sponge. C) Milk. D) Butter. Show Answer Correct Answer: D) Butter. 15. Which of the following is a true solution? A) Blood. B) Milk. C) Chalk powder in water. D) Salt solution. Show Answer Correct Answer: D) Salt solution. 16. A compound can have variable composition. A) False. B) Wrong Question. C) Sometimes. D) True. Show Answer Correct Answer: A) False. 17. Particles of which are visible to naked eyes A) Mixture. B) Colloidal solution. C) Suspension. D) None of the above. Show Answer Correct Answer: C) Suspension. 18. Milk is a ..... solution while vinegar is a ..... solution A) Suspension, colloid. B) Colloid, suspension. C) True, colloid. D) Colloid, true. Show Answer Correct Answer: D) Colloid, true. 19. What is the solute in the soda water? A) Water. B) Carbon dioxide. C) Sugar. D) Oxygen. Show Answer Correct Answer: B) Carbon dioxide. 20. Select a heterogeneous mixture out of the following A) Air. B) NaCl in water. C) Emulsion. D) Alloy. Show Answer Correct Answer: C) Emulsion. 21. In a sugar solution that has sugar and water mixed what is the solute A) Water. B) Sugar. C) I don't know. D) None of the above. Show Answer Correct Answer: B) Sugar. 22. Assertion (A):After heating Iron fillings and Sulphur powder together, the substance so formed loses it's magnetism.Reason (R):The substance so formed is a homogeneous mixture. A) Both A and R are true and R is the correct explanation of A. B) Both a and R are true but R is not the correct explanation of the A. C) A is true and R is false. D) A is false and R is true. Show Answer Correct Answer: C) A is true and R is false. 23. Which of the following is a compound? A) Stainless steel. B) Bronze. C) Graphite. D) Hydrogen sulphide. Show Answer Correct Answer: D) Hydrogen sulphide. 24. Of what is a shaving cream a colloid? A) Gas in liquid. B) Liquid in liquid. C) Gas in solid. D) Liquid in solid. Show Answer Correct Answer: A) Gas in liquid. 25. Arsenic can be purified by? A) Sublimation. B) Distillation. C) Chromatography. D) Crystallization. Show Answer Correct Answer: A) Sublimation. ← 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 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books