GCSE Chemistry C3 - All the Topic 1 'Qualitative Analysis' test

1. What colour flame do potassium ions produce?

  • Lilac
  • Orange - yellow
  • Brick red
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Other questions in this quiz

2. What is phenolphthalein used for?

  • Titrations with a strong acid and a strong base, titrations with a weak acid and a strong base
  • All titrations
  • Titrations with a strong acid and a strong base, titrations with a strong acid and a weak base

3. Which of these observations indicates the presence of aluminium ions?

  • A white precipitate that dissolves in excess NaOH
  • A light blue precipitate
  • Aluminium metal forming at the bottom of the test tube

4. What is the test for ammonium ions?

  • Gently heat the test tube and test the gas given off with moist red litmus paper. It should go blue.
  • Add methyl orange and it will go colourless if ions are present
  • Add phenolphthalein and it will turn pink if ions are present

5. I add dil HCL and barium chloride to a solution, which produces a white precipitate. This is the test for which ions?

  • Sulphate ions
  • Carbonate ions
  • The halides

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