In which of the following is the C-Cl bond le | vedclass

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(C) The $C-Cl$ bond length is inversely proportional to the partial double bond character of the bond.In option $A$,the $Cl$ atom is attached to a $sp

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(C) The $C-Cl$ bond length is inversely proportional to the partial double bond character of the bond.In option $A$,the $Cl$ atom is attached to a $sp^2$ hybridized carbon atom which is part of a conjugated system,leading to resonance and partial double bond character.In option $B$,the $Cl$ atom is attached to a $sp^3$ hybridized carbon atom (benzyl chloride),which has a single bond character.In option $C$,the $Cl$ atom is attached to a $sp^2$ hybridized carbon atom in a benzene ring,which also shows resonance and partial double bond character.In option $D$,the $Cl$ atom is attached to a $sp^2$ hybridized carbon atom which is part of a cross-conjugated system,showing significant partial double bond character.Comparing the resonance effects,the $C-Cl$ bond in chlorobenzene (option $C$) has the most significant partial double bond character due to the delocalization of the lone pair of $Cl$ into the aromatic ring,resulting in the shortest bond length among the given options.

In which of the following is the $C-Cl$ bond length minimum?

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