Solve this:

Q. A solution contains Fe^{2 +}. Fe^{3 +} and I^–ions. This solution was treated with iodine at 35$°$C. E$°$ for Fe^{3 +} / Fe^{2 +} is + 0.77 V and E$°$ for I₂/2 I^- = 0.536 V. The favourable redox reaction is –


      (1) Fe^{2 +} will be oxidised to Fe^{3 +}                         (2) I₂  will be reduced to I^–


      (3) There will be no redox reaction                       (4) I–will be oxidised to I₂