Question

Which of the following ionic compounds is incorrectly named?

a) Zn(NO₃)2, zinc nitrate
b) TeCl₄, Tellurium (IV) Chloride
c) Fe₂O₃, Diiron Oxide
d) BaO, Barium Oxide
e) Mn₃(PO₄)2, manganese(II)Phosphate

Answer 1

The compound Fe2O3 is incorrectly named as Diiron Oxide. The correct name for Fe2O3 is iron(III) oxide, reflecting the +3 oxidation state of iron in the compound.

Step-by-step explanation:

The question is asking which of the following ionic compounds is incorrectly named:

1. Zn(NO3)2, zinc nitrate
2. TeCl4, Tellurium (IV) Chloride
3. Fe2O3, Diiron Oxide
4. BaO, Barium Oxide
5. Mn3(PO4)2, manganese(II) Phosphate

The incorrect name among these is c) Fe2O3, Diiron Oxide. The correct name for Fe2O3 is iron(III) oxide, as iron exhibits a +3 oxidation state in this compound. The naming convention for ionic compounds with transition metals includes specifying the oxidation state of the metal because many transition metals can exhibit more than one ionic charge. The Roman numeral (III) indicates the +3 charge on the iron ions.