Q.

The bond order of $Cl - O$ bond in ${ClO}_{3}^{-}$ is_______________ (nearest integer value).

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answer is 2.

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Detailed Solution

Bond order of Cl-O bond = $\frac{Total no . bonds}{Total no . of σ bonds or total resonating structure} = \frac{5}{3} = 1.6$

The bond order is determined this way. There is always one bond $b / w Cl & O$ .

Hence, bond order of this 1.6 and its nearest integer value is 2.

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