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Solution, Mixture and Separation Methods

Solution, Mixture and Separation Methods

10 Questions Published
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Questions

Question 1 Multiple Choice (Single Answer)

Which of the following statements is INCORRECT for a true solution?

  1. True solutions are highly stable.
  2. A true solution scatters light.
  3. Size of solute particles in a solution is less than 1 nm.
  4. Particles of a solution cannot be seen with microscope.
Question 2 Multiple Choice (Single Answer)

Which of the following substances is heterogeneous in nature?

  1. Jelly
  2. Coca Cola
  3. Salt solution
  4. Alcohol
Question 3 Multiple Choice (Single Answer)

Which of the following statements is NOT true?

  1. Colloids cannot be separated with the help of filtration.
  2. Colloidal solution scatters a beam of light passing through it.
  3. Particles of a colloid separate out on filtration through a filter paper.
  4. The size of particles in colloids is between 1 nm and 100 nm in diameter.
Question 4 Multiple Choice (Single Answer)

Which of the following colloidal systems contains solid in dispersed phase?

  1. Starch
  2. Milk
  3. Butter
  4. Ice cream
Question 5 Multiple Choice (Single Answer)

Which of the following substances is an element?

  1. Marble
  2. Graphite
  3. Baking soda
  4. Stone
Question 6 Multiple Choice (Single Answer)

Components of air can be separated from one another with the help of

  1. crystallisation
  2. chromatography
  3. centrifugation
  4. fractional distillation
Question 7 Multiple Choice (Single Answer)

Which of the following papers is used in separating a mixture of coloured materials?

  1. Filter paper
  2. Ordinary paper
  3. Chromatographic paper
  4. Micro filter paper
Question 8 Multiple Choice (Single Answer)

Which of the following can be separated from the mixture using sublimation method?

  1. Common salt
  2. Sulphur
  3. Iron filings
  4. Camphor
Question 9 Multiple Choice (Single Answer)

How can a mixture of NH3 and H2 be separated?

  1. By diffusion
  2. By heating
  3. By preferential liquefaction
  4. By separating funnel
Question 10 Multiple Choice (Single Answer)

The components of which of the following substances can be separated most easily?

  1. Water
  2. Salt
  3. Ink
  4. Sugar
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