In the reaction, M + O 2 arrow MO 2 (superoxide), the metal ( M ) is:

Question

In the reaction, M + O 2 arrow MO 2 (superoxide), the metal ( M ) is: (A) Lithium (B) Sodium (C) Potassium (D) Bariuim

Tardigrade Admin · Accepted Answer

As the size of metal ion increase, tendency to form superoxide increase. Since; superoxide is MO 2 type, it is clear it is alkali metal superoxide. In superoxide, oxygen is in O 2- form. Hence. it is potassium superoxide ( KO 2).

Q. In the reaction, $M + O_{2} \to M O_{2}$ (superoxide), the metal $(M)$ is:

Lithium

Sodium

Potassium

Bariuim

As the size of metal ion increase, tendency to form superoxide increase. Since; superoxide is $M O_{2}$ type, it is clear it is alkali metal superoxide. In superoxide, oxygen is in $O_{2}^{-}$ form. Hence. it is potassium superoxide $(K O_{2})$ .

Q. In the reaction, M+O2​→MO2​ (superoxide), the metal (M) is: