The correct order of bond strength is

The correct order of bond strength is

A
$O_{2}^{-} < O_{2} < O_{2}^{+} < O_{2}^{2 -}$
B
$O_{2}^{2 -} < O_{2}^{-} < O_{2} < O_{2}^{+}$
C
$O_{2}^{-} < O_{2}^{2 -} < O_{2} < O_{2}^{+}$
D
$O_{2}^{+} < O_{2} < O_{2}^{-} < O_{2}^{2 -}$

Solution:

Bond order for $O_{2}, O_{2}^{+}, O_{2}^{-}, O_{2}^{2 -} are$ 2, 2.5, 1.5 and 1.0 respectively. Higher is bond order more is bond energy.

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