GCSE C2 CHEMISTRY ADDITIONAL EDEXCEL QUIZ

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. Define 'simple molecular covalent compounds'

  • Small molecules consisting of only non-metallic atoms
  • Large molecules consisting of only non-metallic atoms
  • Small molecules consisting of only metallic atoms
  • Large molecules consisting of only metallic atoms
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Other questions in this quiz

2. How do you test for 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.
  • 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.

3. Chemical structure of metals

  • An irregular arrangement of positive metal ions
  • An irregular arrangement of negative metal ions surrounded by a sea of delocalised electrons
  • A regular arrangement of positive metal ions surrounded by a sea of delocalised electrons
  • A regular arrangement of negative metal ions

4. Why are metals able to conduct electricity?

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

5. How do scientists use chromatography to identify colourless substances like amino acids and sugars>

  • Spraying the paper with a locating reagent which reacts with the invisible spots to produce a colour
  • Filtering it and seeing which colours are left
  • Spraying the paper with universal indicator so the colourless substances change colour
  • Setting it on fire with a bunsen burner

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