The correct order of bond length of the given species is:

C O_{3}^{2 -} > C O_{2} > C O

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C O_{2} > C O > C O_{3}^{2 -}

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C O > C O_{2} > C O_{3}^{2 -}

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None of these

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Solution

The correct option is A $C O_{3}^{2 -} > C O_{2} > C O$
$C O$ bond order = 3
$C O_{2}$ bond order = 2

$C O_{3}^{2 -}$ bond order = 1.33 (due to resonance)

Bond length increases when bond order decreases. Hence, the correct order is:
$C O_{3}^{2 -} > C O_{2} > C O$

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Similar questions

The correct order of C - O bond length among $C O, C O_{3}^{2 -}, C O_{2}$ is:

The correct order of increasing C-O bond length of $C O, C O_{3}^{2 -}, C O_{2}$ is

C O, C O_{3}^{2 -}, C O_{2}

C - O

C O, C O_{3}^{2 -} and C O_{2}

C - O

C O, C O_{3}^{2 -}, C O_{2}

C O^{+}

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