Which of the following species is paramagnetic?

C O_{2}

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N O

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O_{2}^{2 -}

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C N^{-}

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Solution

The correct option is B $N O$
In $N O$ , there is one unpaired electron in antibonding $π$ molecular orbital. Since $N O$ is an odd electrons system so it will have an unpaired electron making it paramagnetic species.

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Similar questions

Among the following the total no. of species which are paramagnetic

$O_{2}, S_{2}, C N^{-}, N O^{+}, O_{2}^{2 +}, O_{2}^{2 -}, B_{2}, N_{2}^{2 -}, O_{2}^{+}, N O, N O_{2}, N_{2} O$ ___

C N^{-}, N O, O_{2}^{2 -}, O_{2}, N O_{2}, O_{2}^{-}, B_{2}, C_{2}, F_{2}^{-}

O_{2}, O_{2}^{-}

O_{2}^{2 -}

Question 23

Which of the following have identical bond order?

(a) $C N^{-}$

(b) $N O^{+}$

(d) $O_{2}^{2 -}$

O_{2}^{-}, O_{2}^{2 -}

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