Which formula/name pair is incorrect?
FeSO4FeSO_4FeSO4 iron(II) sulfate
Fe2(SO3)3Fe_2(SO_3)_3Fe2(SO3)3 iron(III) sulfite
Fe2(SO4)3Fe_2(SO_4)_3Fe2(SO4)3 iron(III) sulfide
FeSO3FeSO_3FeSO3 iron(II) sulfite
(C) Fe2(SO4)3Fe_2(SO_4)_3Fe2(SO4)3 iron(III) sulfide
Explanation: