In which of the following sets, all species have the same bond order?

N_{2}, O_{2}^{2 +}, N O^{+},^{⊖} C N

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O_{2}, N_{2}^{2 -}, N O^{-}, {N O_{2}}^{+}

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N O, N_{2}^{⊖}, O_{2}^{+}, N O^{2 +}

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All are correct

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Solution

The correct option is D All are correct
M.O. configuration upto $14^e$
eg: For $N_{2}, C N^{-}$ :
$N_{2}, B . O . = 3.0$
$N_{2} : B . O . = 2.5$
$C N^{-}, B . O . = 3.0$
$N_{2}^{2 -} B . O . = 2.0$
M.O. configuration for more than $14^e$
eg: For $O_{2}, B . O . = 2.0$
$N O, B . O . = 2.5$
$O_{2}^{+}, B . O . = 2.5$
$N O^{+}, B . O . = 3.0$
$O_{2}^{2 +}, B . O . = 3.0$
$N O^{-}, B . O . = 2.0$
$N O^{2 +}, B . O . = 2.5$
B.O. of N-O bond in $N O_{2}^{+}$ ie. $O = N^{+} = O = 2.0$

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