The correct order of stability for the following super oxides is :
RbO2>CsO2>KO2
CsO2>RbO2>KO2
KO2>CsO2>RbO2
KO2>RbO2>CsO2
A
RbO2>CsO2>KO2
B
CsO2>RbO2>KO2
C
KO2>CsO2>RbO2
D
KO2>RbO2>CsO2
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Solution
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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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