C15 Analysis

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  • Created by: Lotto65
  • Created on: 10-05-16 13:08

1. What does paper chromatography analyse?

  • The artificial colours in food or dyes in inks
  • Dyes in inks
  • Artificial colours in foods
  • The thermal conductivity of paper
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2. What is distillation used for?

  • Making water molecules
  • Freezing water molecules
  • Separate mixtures of miscible liquids with different boiling points or collect the solvent
  • Collect an insoluble and soluble solute at different temperatures

3. Why do colours move different distances in chromatography?

  • Depending on their viscosity
  • Depending on their colour
  • Depending on their solubility
  • Depending on their flammability

4. What colour is the iron(III) hydroxide precipitate?

  • Blue
  • Orange
  • Brown
  • Green

5. What colour does lithium go in the flame test?

  • Crimson
  • Purple
  • Lilac
  • Yellow

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