The correct option is C Monatomic and form X2− ions
Hydrogen peroxide is both acidic and the basic medium acts as an oxidizing as well as the reducing agent
H2O2 is a monatomic molecule as it contains only one atom. It can be simply represented as HO−OH.
It forms (OH)2−2 ions on breakage.
That is, it forms X2− ions.
HO−OH⇌(OH)2−2
Hence, the correct option is option A