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2. What is the oxidation number for a simple MONOTOMIC ION?

  • Same as its charge
  • +1
  • -1
  • 0

3. What is the oxidation number for an OXYGEN ION?

  • 0
  • -2
  • -1
  • +2

4. What happens during a DISPROPORTIONATION reaction?

  • An element is simultaneously oxidised and reduced
  • An element is added and eliminated
  • Elements are broken into two and increase in oxidation number

5. What happens to oxidation number during REDUCTION?

  • Stays the same
  • Decreases
  • Increases
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