1.

Among the following four structures, one is not a permissible resonance form. Identify the wrong structure.

Answer»

`overset(+)(C)H_(2)-overset(..)underset(" "CH_(3))underset(|)(N)-overset(-)overset(..)underset(..)O:`
`CH_(2)-overset(+)underset(" "CH_(3))underset(|)(N)-overset(-)ddotunderset(..)O:`
`CH_(2)-underset(CH_(3))underset(|)(N)=underset(..)O:`
`:overset(-)(C)H_(2)-overset(+)underset(CH_(3))underset(|)(N)=underset(..)O:`

Answer :C


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