MCQ
The correct order of bond dissociation energy among $N_2, O_2, O_2^-$ is shown in which of the following arrangements?
  • A
    $N_2 > O_2^- > O_2$
  • B
    $O_2^- > O_2 > N_2$
  • $N_2 > O_2 > O_2^-$
  • D
    $O_2 > O_2^- > N_2$

Answer

Correct option: C.
$N_2 > O_2 > O_2^-$
c
The bond order of $N_2,$ $O_2,$ and $O_2^-$ are respectively $3,2$ and $1.5$

Since higher bond order implies higher bond dissociation energy hence the correct orde will be 

$N_2 > O_2 > O_2^-$ 

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