Question

 Why is BeO amphoteric in nature?​

Answer 1

answer :-

BeO dissolves in strongly acidic or basic solutions. Therefore, it is an amphoteric oxide.

Reactions with acid: BeO + 2 HCl + H2O → BeCl2 + 2 H2O

Reactions with base: BeO + 2 NaOH + H2O → Na2Be(OH)4

As we know, according to diagonal relationship between aluminum and beryllium, both have similar properties. As oxide of aluminum is amphoteric in nature, similarly BeO is amphoteric.

Answer 2

Explanation:

Because BeO is insoluble in pure water but reacts with either an acid (like a base would) or a base (like an acid would), we say that it is amphoteric, from a Greek word meaning "both behaviors."