1.

Which of the following is stabilised by mesomeric effect ?

Answer»

`CH_(3)-OVERSET(OPLUS)(C)H_(2)`
`CH_(2)-overset(oplus)(C)H`
`CH_(2)=CH-overset(oplus)(CH_(2))`
`overset(overset(CH_(2)-CH_(2)^(oplus))(|))(NO_(2))`

Solution :Mesomerism is possible in only conjugative SYSTEM `CH_2 = CH - C overset(oplus)(H_2)`


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