Question

Metal $M$ forms a peroxide of the type $M{O}_2.$ Valency of the metal with respect to oxygen is:

• A. $0$
• B. $1$
• C. $2$
• D. $4$

Answer 1

Answer: (C)

$2$

Valency is the combining capacity of an element.

Here, an atom of M combines with two atoms of oxygen.

Hence, valency of $M$ is $2$.

Option C is correct.