What is the correct name for the ionic compound, Mn2O3?

Question

? manganese(II) oxide
? dimanganese(III) trioxide
? manganese(III) trioxide
? manganese(III) oxide
? magnesium(III) oxide

Answer 1

The correct name for the ionic compound Mn₂O₃ is manganese(III) oxide.

In this compound, manganese has a +3 oxidation state (since there are two manganese ions contributing a total of +6 charge to balance the -6 charge from three oxide ions), which is indicated by the (III) in the name. Therefore, the correct answer is:

manganese(III) oxide.