Electrolysis

    Cards (1)

    • Negative electrode (Cathode) ->

      Is the metal copper or lower on the reactivity series?
      Yes - The metal is produced
      No - Hydrogen gas is produced


      Positive electrode (Anode) ->
      1. If halide ions are present, halogens are produced
      2. If carbonate, sulphate or nitrate ions are in the solution, oxygen gas from the water is produced