Oxidation and Reduction

• What is oxidation?

  The addition of oxygen to a substance.
• What is reduction?

  The loss/removal of oxygen from a substance.
• What is an oxidising agent?

  Electron acceptor
• What is a reducing agent?

  Electron donors
• What is meant by a redox reaction?

  Transfer of electrons.
• What is oxidation in terms of oxidation state?

  Increase in oxidation state
• What is reduction in terms of oxidation state?

  Decrease in oxidation state
• What is a disproportionation reaction?

  A species is simultaneously oxidised and reduced.