Rank the following compounds in order of decreasing oxidation level, putting the compound with the highest oxidation level first.

Question

Quizplus · Accepted Answer

The oxidation state of an atom is the charge it would have if all the electrons in the bonds were assigned to the more electronegative atom. 
I: The oxidation state of Fe in FeCl3 is +3.
II: The oxidation state of N in NH3 is -3.
III: The oxidation state of Cu in CuSO4 is +2.
IV: The oxidation state of S in H2SO4 is +6.
Therefore, the decreasing order of oxidation states is: IV (+6) > III (+2) > I (+3) > II (-3), which corresponds to choice C.

Rank the Following Compounds in Order of Decreasing Oxidation Level