AIIMS2009Chemistry-Inorganic Chemistry

AIIMS 2009 Chemistry Oxides MCQ Question

Type: MCQ-conceptual-Medium-Class 11

The correct order of stability of the superoxides is

A

KO₂ > RbO₂ > CsO₂

B

KO₂ > CsO₂ > RbO₂

C

CsO₂ > RbO₂ > KO₂

D

RbO₂ > CsO₂ > KO₂

Correct Answer

Option C

Detailed Explanation

Stability of superoxides increases with increase in size and electropositivity of the metal.

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