This quiz works best with JavaScript enabled. Home > Cbse > Class 6 > Science > Separation Of Substances > Class 6 Science Chapter 5 Separation Of Substances – Quiz 7 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 6 Science Chapter 5 Separation Of Substances Quiz 7 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The process of converting a liquid condition to a gaseous state when heated is known as? A) Condensation. B) Sublimation. C) Evaporation. D) Sedimentation. Show Answer Correct Answer: C) Evaporation. 2. The process of separating solid and liquid is A) Filtration. B) Seiving. C) Threshing. D) None of the above. Show Answer Correct Answer: A) Filtration. 3. Which method do we use to separate wheat grain from stalk A) Winnowing. B) Sieving. C) Hand-picking. D) Threshing. Show Answer Correct Answer: D) Threshing. 4. What plays an important role in the process of winnowing? A) Direction of wind. B) Grains from stalks. C) Fodder for cattle. D) None of these. Show Answer Correct Answer: A) Direction of wind. 5. In a activity Devansh dissolved some sugar with water. How will he separate Sugar form water. A) Evaporation. B) Condensation. C) Filtration. D) Sedimentation and Decantation. Show Answer Correct Answer: A) Evaporation. 6. It is an example of heterogenous mixture. A) Sand. B) Alloy. C) Salt solution. D) Juice. Show Answer Correct Answer: A) Sand. 7. Name the process by which gas changes into liquid A) Evaporation. B) Boiling. C) Decantation. D) Condensation. Show Answer Correct Answer: D) Condensation. 8. Harvesting means A) Cutting ripened crops. B) Removing beads from pearls. C) A machine used for threshing. D) Another name for threshing. Show Answer Correct Answer: A) Cutting ripened crops. 9. Husk and grains are separated from the process of ..... A) Threshing. B) Hand picking. C) Winnowing. D) Sieving. Show Answer Correct Answer: C) Winnowing. 10. Separating tea leaves from tea with A) Food. B) Cloth. C) Pan. D) Strainer. Show Answer Correct Answer: D) Strainer. 11. With the rise in temperature, the solubility of gases in water A) Decreases. B) Increases. C) First increases, then decreases. D) Remains the same. Show Answer Correct Answer: A) Decreases. 12. Butter is separated from curd by the process of A) Filtration. B) Heating. C) Sieving. D) Churning. Show Answer Correct Answer: D) Churning. 13. Wind manages to separate substances during threshing. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 14. The method of separating heavier substances and lighter substances. A) Winnowing. B) Threshing. C) Hand-picking. D) Sieving. Show Answer Correct Answer: A) Winnowing. 15. What name is given to the solid left on the filter paper? A) The residue. B) The product. C) The resident. D) The filtrate. Show Answer Correct Answer: A) The residue. 16. Which of the following need to separated from rice or wheat by hand picked method? A) Solid. B) Stone. C) Stock. D) Liquid. Show Answer Correct Answer: B) Stone. 17. We separate two ..... liquids using separating funnel A) Dissolved. B) Miscible. C) Float-sink. D) Immiscible. Show Answer Correct Answer: D) Immiscible. 18. The small pores of sieve should be A) Less than the size of smaller particle. B) Slightly more than the size of smaller particle. C) More than the size of bigger particle. D) Slightly less than the size of bigger particle. Show Answer Correct Answer: B) Slightly more than the size of smaller particle. 19. Sometimes, it may not be possible to separate components of a mixture by winnowing and handpicking. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 20. The tool sieve has- A) No holes for separation. B) Big holes for separation. C) Small holes for separation. D) 1 big hole for separation. Show Answer Correct Answer: C) Small holes for separation. 21. Handpicking is a method of separating ..... A) Components by legs. B) Components by machine. C) Components by hands. D) I don't know. Show Answer Correct Answer: C) Components by hands. 22. The method that is used to obtain pure salt from impure salt is A) Decantation. B) Crystallisation. C) Evaporation. D) Condensation. Show Answer Correct Answer: B) Crystallisation. 23. Which substance is an sublime among these: A) IODINE. B) SALT. C) SAND. D) SUGAR. Show Answer Correct Answer: A) IODINE. 24. State true or false9.The solubility of gases in water increases with increase in temperature. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 25. More substance can be dissolved in its saturated solution by A) Heating. B) Adding more water. C) Neither (a) nor (b). D) Both (a) and (b). Show Answer Correct Answer: D) Both (a) and (b). 26. A farm machine called ..... is used for both harvesting and threshing A) Thresher. B) Combine. C) Mixi-grinder. D) Harvester. Show Answer Correct Answer: B) Combine. 27. The process, of cutting and gathering the ripened crop, is called A) WINNOWING. B) THRESHING. C) SEPERATION. D) HARVESTING. Show Answer Correct Answer: D) HARVESTING. 28. The process of conversion of waterinto its vapour is called ..... A) Decantation. B) Evaporation. C) Sedimentation. D) Filtration. Show Answer Correct Answer: B) Evaporation. 29. The property which forms the basis of sieving A) Difference in colour. B) Difference in size. C) Difference in shape. D) Difference in weight. Show Answer Correct Answer: B) Difference in size. 30. Factors affect the solubility of solute A) Temperature. B) Mixing are stirring. C) Size of the solute. D) Quantity of the solvent. E) All of these. Show Answer Correct Answer: E) All of these. 31. Which is the example of mixture A) BAKING SODA. B) CRUDE OIL. C) SUGAR. D) SALT. Show Answer Correct Answer: B) CRUDE OIL. 32. Iron particles can be separated from the mixture by: A) Sedimentation. B) Magnet. C) Decantation. D) Evaporation. Show Answer Correct Answer: B) Magnet. 33. A main condition for sieving A) Particles should be magnetic in nature. B) Particles should be of different sizes. C) Particles should be sublimes. D) Particles should be of different colours. Show Answer Correct Answer: B) Particles should be of different sizes. 34. The separation technique that involves heating a solution until the liquid changes into a gaseous state, leaving behind a solid is known as A) Chromatography. B) Loading. C) Decanting. D) Evaporation. Show Answer Correct Answer: D) Evaporation. 35. The direction of wind plays an important role in the process of ..... A) Distillation. B) Winnowing. C) Threshing. D) Condensation. Show Answer Correct Answer: B) Winnowing. 36. ..... is used to separate heavier and lighter components of a mixture by wind or by blowing air A) Sieving. B) Winnowing. C) Threshing. D) Handpicking. Show Answer Correct Answer: B) Winnowing. 37. By which method can we separate grains from stalk? A) Threshing. B) Winnowing. C) Handpicking. D) Evaporation. Show Answer Correct Answer: A) Threshing. 38. Meena accidentally spilled some oil into the water glass. After leaving it undisturbed, which method of separation she can use to separate oil from water? A) Sedimentation. B) Filtration. C) Decantation. D) Filtration and decantation. Show Answer Correct Answer: C) Decantation. 39. PROPERTIES COMMONLY USED TO SEPARATE SOLIDS FROM A MIXTURE OF SOLIDS ARE A) COLOUR, SHAPE AND WEIGHT. B) MAGNETIC PROPERTY. C) SIZE AND SOLUBILITY IN WATER. D) ALL OF THE ABOVE. Show Answer Correct Answer: D) ALL OF THE ABOVE. 40. A mixture of water and mustard oil can be separated by using a separating fluid A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 41. A solution in which no more soluble ( solute) substance can be dissolved at room temperature is called ..... solution. A) Impure substance. B) Unsaturated. C) Saturated. D) Mixture. Show Answer Correct Answer: C) Saturated. 42. Name the process used for the separation of the following:Wheat grains from stalks A) Threshing. B) Winnowing. C) Hand-picking. D) Sieving. Show Answer Correct Answer: A) Threshing. 43. A separation method which involves blowing of light particles by air A) Sedimentation. B) Winnowing. C) Filtration. D) Threshing. Show Answer Correct Answer: B) Winnowing. 44. The process of conversion of water into its liquid is called condensation. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 45. Butter can be separated from curd using the process of: A) Filtration. B) Churning. C) Sieving. D) Heating. Show Answer Correct Answer: B) Churning. 46. Anything that has mass and occupies space is called ..... A) Material. B) Matter. C) Substance. D) None of these. Show Answer Correct Answer: B) Matter. 47. The process of seperating insouluble solids, suspended in a liquid, by allowing them to settle down is called sedimentation. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 48. ..... filter has very fine pores in it? A) Paper filter. B) Wood filter. C) Plastic filter. D) Stone filter. Show Answer Correct Answer: A) Paper filter. 49. Filtration is a method to separate the components of a A) (a) solution. B) B) mixture of a liquid and an insoluble substance. C) (c) both (a) and (b). D) (d) pure substance. Show Answer Correct Answer: B) B) mixture of a liquid and an insoluble substance. 50. The components of a solution can be separated by- A) Filtration. B) Decantation. C) Sedimentation. D) Evaporation. Show Answer Correct Answer: D) Evaporation. 51. Which one is the essential step that a farmer does with the stalks before threshing? A) Beat the stalks to free the grains. B) Winnowing. C) Drying of the stalks in the sun. D) None of the above. Show Answer Correct Answer: C) Drying of the stalks in the sun. 52. To separate a mixture of salt and water what separation tool/method is used? A) Sieve. B) Evaporation. C) Magnet. D) Filter. Show Answer Correct Answer: B) Evaporation. 53. At water treatment plants, the river water is filtered by using A) Filter paper. B) Porcelain filters. C) Cloth filters. D) Sand filters. Show Answer Correct Answer: D) Sand filters. 54. The impurities that left on the filter paper during filtration process, is A) Filtrate. B) Residue. C) Solvent. D) Bacteria. Show Answer Correct Answer: B) Residue. 55. The method of separation used to separate stone from rice is ..... A) Handpicking. B) Threshing. C) Winnowing. D) All of the above. Show Answer Correct Answer: A) Handpicking. 56. Winnowing is used to separate and components of a mixture by wind or by blowing air. A) Big and Small. B) Tall and Short. C) Heavier and Lighter. D) Smooth and Rough. Show Answer Correct Answer: C) Heavier and Lighter. 57. The method used to separate cream from milk is called centrifugation. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 58. Sedimentation and decantation are useful to separate A) Insoluble solid from a liquid where the solid is heavier than the liquid. B) Insoluble solid from liquid. C) Immiscible liquids. D) Soluble solid from liquid. Show Answer Correct Answer: A) Insoluble solid from a liquid where the solid is heavier than the liquid. 59. A mixture of common salt and water can be separated by evaporation. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 60. Priti accidently added wheat flour to a jar half filled with sugar crystals. The two can be separated by ..... A) A) Sieving. B) B) Filtration. C) C) Hand Picking. D) D) Decantation. E) Both A and B. Show Answer Correct Answer: A) A) Sieving. ← PreviousNext →Related QuizzesScience QuizzesClass 6 QuizzesClass 6 Science Chapter 5 Separation Of Substances Quiz 1Class 6 Science Chapter 5 Separation Of Substances Quiz 2Class 6 Science Chapter 5 Separation Of Substances Quiz 3Class 6 Science Chapter 5 Separation Of Substances Quiz 4Class 6 Science Chapter 5 Separation Of Substances Quiz 5Class 6 Science Chapter 5 Separation Of Substances Quiz 6Class 6 Science Chapter 5 Separation Of Substances Quiz 8Class 6 Science Chapter 5 Separation Of Substances Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books