Find the odd on out from the given list of metallic oxides.

In the given list of metallic oxides, Aluminum oxide, Zinc oxide, and Iron(III) oxide are amphoteric oxides whereas Magnesium oxide is a basic oxide.

The metallic oxides that can react with acids and bases are known as amphoteric oxides. These compounds behave as bases when they react with acids and form normal salts.

These salts also behave as acids when they react with specific bases and form a complex salt as they cannot replace the metallic ion of the base.

ZnO and Al₂O₃ and Fe₂O₃ are known as amphoteric oxides as thy react with acids and bases both to form salts.

But MgO is a pure basic oxide as it only reacts with acids and donot react with bses like ZnO and Al₂O₃ and Fe₂O₃.

Reaction of MgO with acid is given as:

$\mathrm{MgO}+ 2\mathrm{HCl}\to {\mathrm{MgCl}}_2+{\mathrm{H}}_2\mathrm{O}$