S-O bond length is maximum in | vedclass

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(D) Bond length is inversely proportional to bond order. Calculating the bond order for each species: $SO_2$: Bond order = $1.5$ $SO_3$: Bond order =

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$SO_3^{2-}$

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(D) Bond length is inversely proportional to bond order. Calculating the bond order for each species: $SO_2$: Bond order = $1.5$ $SO_3$: Bond order = $1.33$ $SO_4^{2-}$: Bond order = $1.5$ $SO_3^{2-}$: Bond order = $1.33$ However,considering the resonance and the number of lone pairs,the $S-O$ bond length is maximum in $SO_3^{2-}$ due to the presence of a lone pair on the sulfur atom which increases repulsion and decreases the bond order effectively compared to $SO_3$.

$S-O$ bond length is maximum in

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