Question

Which one of the following cannot form an amphoteric oxide?

• A. $Al$
• B. $Sn$
• C. $Sb$
• D. $P$

Answer 1

The correct option is D $P$

$P$ does not from the amphoteric oxide as $P$ forms the covalent oxide and covalent oxides are acidic in nature.

Whereas $Al,Sn$ and $Sb$ form amphoteric oxides as the oxides of these are partial ionic as well as partial covalent.

An amphoteric compound is a molecule or ion that can react both as an acid as well as a base.

Many metals (such as copper, zinc, tin, lead, aluminium and beryllium) form amphoteric oxides or hydroxides. Amphoterism depends on the oxidation states of the oxide.

Hence, option $D$ is correct.