Q. Bond order of $1.5$ is shown by:

3621 224 AIPMTAIPMT 2012Chemical Bonding and Molecular Structure Report Error

A

$O_{2}^{2 -}$

14%

B

$O_{2}$

14%

C

$O_{2}^{+}$

20%

D

$O_{2}^{-}$

52%

Solution:

$O_{2}^{-}$ Bond order $= 1.5$