Which of the following species is not paramagnetic?

C O

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O_{2}

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B_{2}

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N O

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Solution

The correct option is A $C O$
According to given data;

$C O = 0$ Unpaired electron is present

$O_{2} = 2$ Unpaired electrons are present in $π^{}$ molecules in orbital.

$B_{2} = 2$ Unpaired electrons are present in $π^{}$ molecules in orbital.

$N O = 1$ Unpaired electron is present in $π^{*}$ molecules in orbital.

So, $C O = 0$ Unpaired electron is present,

Hence, it is not paramagnetic.

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Similar questions

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

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

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

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

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

C O,

N O^{+},

O_{2}^{-},

C H_{4},

C N^{-},

N O

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