Which of the following is a wrong representat | vedclass

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(C) In resonance or conjugation,electron displacement occurs from a region of high electron density (like a lone pair or a $\pi$ bond) to an adjacent

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(C) In resonance or conjugation,electron displacement occurs from a region of high electron density (like a lone pair or a $\pi$ bond) to an adjacent single bond to form a new $\pi$ bond.In options $A$,$B$,and $D$,the lone pairs on $N$,$O$,and $Cl$ respectively are conjugated with the benzene ring,so moving a lone pair to form a double bond with the ring carbon is a correct representation of resonance.In option $C$,the cyano group $(-C \equiv N)$ is attached to the benzene ring. The carbon of the cyano group is $sp$ hybridized and already forms a triple bond with nitrogen. Moving the $\pi$ electrons of the $C \equiv N$ bond towards the ring carbon would result in a pentavalent carbon atom,which is chemically impossible. Therefore,this is a wrong representation.

Which of the following is a wrong representation of electron displacement?

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