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Question

The correct order of stability for the following super oxides is :
  1. RbO2>CsO2>KO2
  2. CsO2>RbO2>KO2
  3. KO2>CsO2>RbO2
  4. KO2>RbO2>CsO2

A
RbO2>CsO2>KO2
B
CsO2>RbO2>KO2
C
KO2>CsO2>RbO2
D
KO2>RbO2>CsO2
Solution
Verified by Toppr

A small ction can stabilize a small anion and a large cation can stabilize a large anion. Stability of superoxides increses down the group in alkali metals.

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