oxidizing reagent: CuCl2 reducing reagent: Fe note: the oxidation state of Cu in CuCl2 is +2 , while that in Cu is zero the OS of Fe in Fe is zero, the OS of Fe in FeCl2 is +2. Solution oxidizing reagent: CuCl2 reducing reagent: Fe note: the oxidation state of Cu in CuCl2 is +2 , while that in Cu is zero the OS of Fe in Fe is zero, the OS of Fe in FeCl2 is +2..