Redox reactions

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1. Why do diatomic molecules have an oxidation state of 0?

  • They have been oxidised
  • They lost the same amount of electrons they gained
  • They haven't lost or gained any electrons
  • They have been reduced
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2. What is the oxidation state of uncombined elements?

  • +1
  • -1
  • 0
  • +2

3. What happens to oxidising agents?

  • Nothing
  • They are reduced
  • They are oxidised

4. What happens at the cathode (negative electrode)?

  • Oxidation
  • Nucleophilic addition
  • Reduction
  • Nothing

5. In a redox reaction, what happens to reducing agents?

  • They are oxidised
  • They are reduced
  • Nothing

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