Loss & gain of electrons

• Oxidation is the loss of electrons and the gain of oxygen
• Reduction is the gain of electrons but the loss of oxygen
• how are displacement reactions redox reactions?

  The metal ion is reduced (gains electrons) and the metal atom is oxidised (loses electrons).
• Displacement uses metal reactivity. Displacement reactions occur when a more reactive metal switches places with (or displaces) the less reactive metal within a compound.