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Separation of Mixtures

Test your knowledge of various separation methods including centrifugation, filtration, distillation, crystallization, and sublimation. Useful for class 6 students of CBSE, ICSE and competitive exam preparation.

15 Questions Published
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Questions

Question 1 Multiple Choice (Single Answer)

Which of the following methods is used to separate water particles from clothes, while drying in the washing machine?

  1. Magnetic separation
  2. Filtration
  3. Evaporation
  4. Centrifugation
  5. Distillation
Question 2 Multiple Choice (Single Answer)

Which of the following terms illustrates, the change from vapour to liquid?

  1. Condensation
  2. Centrifugation
  3. Distillation
  4. Evaporation
  5. Floatation
Question 3 Multiple Choice (Single Answer)

Which of the following would be described as a 'sediment'?

  1. Pouring the clear liquid
  2. The insoluble solids settling out
  3. Drying the solid by heating
  4. Stirred water and fine sand particles
  5. Remain solid after filtration
Question 4 Multiple Choice (Single Answer)

Which word means 'it will dissolve'?

  1. Solvent
  2. Soluble
  3. Solute
  4. Solution
  5. Saturate
Question 5 Multiple Choice (Single Answer)

Which of the following means 'how much will dissolve'?

  1. Insoluble
  2. Solubility
  3. Dissolves
  4. Saturated
  5. Solution
Question 6 Multiple Choice (Single Answer)

Smoke in a closed room makes the walls black. This is because smoke is a

  1. gas - in - solid mixture
  2. solid - in - solid mixture
  3. solid - in - liquid mixture
  4. gas - in - gas mixture
  5. solid - in - gas mixture
Question 7 Multiple Choice (Single Answer)

Ultra pure substances from a liquid can be obtained by the process of

  1. Liquification
  2. Sedimentation
  3. Crystallization
  4. Centrifugation
  5. Magnetic separation
Question 8 Multiple Choice (Single Answer)

Which of the following properties is used for winnowing?

  1. Difference in weight
  2. Difference in size
  3. Difference in colour
  4. Difference in shape
  5. Difference in state
Question 9 Multiple Choice (Single Answer)

Separating the components of a homogeneous mixture using electricity is called

  1. electrification
  2. electrolysis
  3. electrolyte
  4. electromagnetisation
  5. evaporation
Question 10 Multiple Choice (Single Answer)

Iodine, camphor, ammonium chloride and naphthalene are four substances, which of the following properties is common to all these sustances?

  1. Equal densities
  2. Sublimation property
  3. Equal melting points
  4. Pure homogeneous mixtures
  5. Equal boiling points
Question 11 Multiple Choice (Single Answer)

Crude oil is purified using fractional distillation process. This method works on the principle of

  1. differences in the masses of the components
  2. differences in the volumes of the components
  3. differences in the boiling points of the components
  4. differences in the densities of the components
  5. differences in their solubility in water
Question 12 Multiple Choice (Single Answer)

The methods of separation used in municiple water works are

  1. loading, sedimentation, decantation and filtration
  2. sedimentation, filtration and distillation
  3. loading, decantation, sieving and distillation
  4. sedimentation, centrifugation and distillation
  5. loading, sedimentation, filtration and decantation
Question 13 Multiple Choice (Single Answer)

When a mixture of common salt and ammonium chloride is heated, white fumes are liberated which change into a white deposit when cooked. What is the substance?

  1. Ammonium chloride
  2. Sodium chloride ( common salt )
  3. A mixture of ammonium chloride and common salt
  4. Ammonium sulphate
  5. Calcium carbonate
Question 14 Multiple Choice (Single Answer)

Cream is separated from milk by

  1. Evaporation
  2. Coagulation
  3. Distillation
  4. Centrifugation
  5. Filtration
Question 15 Multiple Choice (Single Answer)

Which of the following processes do we use to separate a mixture of water and sulphur?

  1. Filtration
  2. Sublimation
  3. Evaporation
  4. Distillation
  5. Coagulation
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