Which of the following have identical bond order?

Options

A. `O_(2)^(Θ)`
B. `CN^(Θ)`
C. `NO^(o+)`
D. `O_(2)^(o+)`

Explanation

The outermost shell of `C,N` and `O` has `4,4` and `e^(-')s`
respectively Thus `CN^(Θ)` and `NO^(o+)` each has `10 e^(-')s`
to accommodate in the `MO` s So their bond order is same `O_(2)^(Θ)` has `(6 +6 +1) =13` and `CN^(o+)` has `(4 + 5 -1) = 8 e^(-') s` in the outermost shell .