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. What can be used to detect the presence of individual elements?

  • Clarifying with the periodic table
  • Asking a scientist (although a good idea - please don't choose this)
  • Emission Spectroscopy
  • Flame tests
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Other questions in this quiz

2. How do you test for sulfate ions?

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

3. Most simple molecular substances don't dissolve in water - with exception to.... ?

  • Potassium
  • Sugar (sucrose)
  • Lactobacillus
  • Graphite

4. Why are metal ions malleable?

  • The layers of negative protons can slide over eachother in a sea of neutrons
  • The layers of positive ions can slide over eachother in the sea of electrons
  • The layers of positive electrons can slide over eachother in a sea of protons
  • The layers of negative ions can slide over eachother in a sea of electrons

5. What is the equation for chromatography?

  • distance traveled by component / distance traveled by solvent
  • e = mc^2
  • 3.14 x r^2
  • distance traveled by component x distance traveled by solvent

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