Question

Hydrogen peroxide molecules are:

• A. monoatomic and form $X_2^{2-}$ ions
• B. diatomic and form $X^{-}$ ions
• C. diatomic and form $H{O}_2^{-}$ ions
• D. monoatomic and form $X^{-}$ ions

Answer 1

The correct option is A monoatomic and form $X_2^{2-}$ ions

$H_2{O}_2$ is a monoatomic molecule as it contains only one atom. It can be simply represented as $HO-OH$. It form $(OH{)}_2^{2-}$ ions on breakage. That is, it forms $X_2^{2-}$ ions.

$HO-OH\rightleftharpoons {\left(OH\right)}_2^{-2}$