1.

Which of the following easily undergo nucleophilic substutition by S_(N^(1)) mechanism in butanol

Answer»

`C_(6)H_(5)CH_(2)Br`
`BrCH_(2)CH=CH_(2)`
`(CH_(3))_(3)CBr`
`(CH_(3))_(3)C CH_(2)Br`

Solution :(a) `C_(6)H_(5).^(+)(C)H_(2)` stabilized by RESONANCE over the PHENYL ring.

stabilized by +I-effect of `CH_(3)` groups


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