What is the metal oxidation state in #Fe(SO_4)_2#? Chemistry Ionic Bonds Ionic Compounds 1 Answer anor277 Sep 13, 2016 That's #Fe^(4+)#! It is probably a typo. Explanation: The sulfate ion is #SO_4^(2-)#. There is a #"ferrous sulfate, "FeSO_4", and a ferric sulfate, " Fe_2(SO_4)_3#. #Fe(IV+)# salts would be rare. Answer link Related questions Question #79c2f Question #cd842 Why do ionic compounds dissolve in water? Question #975aa Question #975ae Question #67e72 What do the terms anhydrous, hydrous, and undissociated mean? What are ionic compounds? How can I identify ionic compounds? Why are ionic compounds solid at room temperature? See all questions in Ionic Compounds Impact of this question 1795 views around the world You can reuse this answer Creative Commons License