The number of resonance structures that anili | vedclass

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(A) Aniline $(C_6H_5NH_2)$ has a lone pair on the nitrogen atom which is in conjugation with the benzene ring. This allows for the delocalization of t

Vedclass · Accepted Answer

$5, 2$

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(A) Aniline $(C_6H_5NH_2)$ has a lone pair on the nitrogen atom which is in conjugation with the benzene ring. This allows for the delocalization of the lone pair into the ring,resulting in $5$ resonance structures (one original structure + $4$ canonical forms).In the anilinium ion $(C_6H_5NH_3^+)$,the nitrogen atom has a positive charge and no lone pair available for conjugation with the benzene ring. Therefore,the only resonance structures possible are the $2$ Kekulé structures of the benzene ring itself.

The number of resonance structures that aniline and anilinium ion can have are respectively:

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