1. The problem statement, all variables and given/known data I am given a 1 M solution of Iron(II)sulphate(aq) and it is being electrolyzed using inert electrodes . What will form on the cathode ? 2. Relevant equations Reduction potentials of : Fe =-0.44V of water to from hydrogen : -0.83V 3. The attempt at a solution Since iron(II) ion has a more POSITIVE value it is easily reduced at the cathode to form Iron (solid). Unfortunately this answer is wrong . The correct answer is Hydrogen will be formed on the cathode ... Why ?