This resource doesn't cover one specific topic or the whole of C2. I have made flash cards (not electronically) and when filtering through them I have made this quiz to help me remember all the flash cards I didn't know. Please don't take this as a staple revision source - this only has a few random pieces from different topic areas.

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1. How do you test for chloride ions?

  • Add silver nitrate, if a precipitate forms it contains chloride ions.
  • Bubble it through limewater - if a blue precipitate is formed it contains chloride ions.
  • Dip a nichrome wire in acid and dip it in the substance, put it in a bunsen burner and the flame will turn blue if chloride ions are present.
  • Add water sterilising tablets. If it turns cloudy, chloride ions were present, as chlorine is present in a swimming pool.
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Other questions in this quiz

2. What group are alkali metals in?

  • 1
  • 3
  • 7
  • 4

3. Why are metals able to conduct electricity?

  • Because the delocalised electrons can move when a voltage is applied
  • Because they're soluble in water
  • Because the protons are able to move
  • Because the neutrons are delocalised and can move when a voltage is applied

4. How do you test for sulfate ions?

  • Placing the sulfate ion solution in an oxygen tank. It will freeze is sulfate ions are present.
  • Adding sulfuric acid and barium chloride solution. A displacement reaction will occur to show sulfate ions are present.
  • Adding HCl and barium chloride solution. If a white precipitate forms it contains sulfate ions. The precipitate will be barium sulfate.
  • Adding phosphate ions and silver nitrate. The metal will run off and fizz, producing a hydrogen. This shows sulfate ions are present.

5. Colour of halide ions

  • Green
  • Colourless
  • Pale yellow
  • Pale blue


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