1.

Which of the following is the least stable resonance structure of CH_(2)=CH-CHO

Answer»




All are EQUALLY stable

Solution :AMONG the given resonance STRUCTURES
`overset(Ɵ)(C)H_2 - CH - overset( overset(OPLUS)O) overset(|)CH`
is the least stable one since more EN atom, O is carrying positive charge.


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