Give ion electron equations for the following reactions
(i) Oxidation of ferrous ions to ferric ions by hydrogen peroxide both in acidic and basic media.
(ii) Oxidation of iodide ion to iodine by hydrogen peroxide in acidic medium.
(iii) Reduction of acidified permanganate ion by hydrogen peroxide.
(iv) Reduction of alkaline ferricyanide ions to ferrocyanide ions.
(v) Oxidation of ferrocyanide ions to ferricyanide ions in acidic medium.