Which of the following statements are correct about the given reaction?
Fe2O3 + 3CO → 2Fe + 3CO2
(i) Fe2O3 acts as an oxidising agent and CO as a reducing agent.
(ii) Fe2O3 acts as a reducing agent and CO(s) as an oxidising agent.
(iii) Fe2O3 is being reduced while CO is being oxidised.
(iv) Fe2O3 is being oxidised while CO is being reduced.