1.

The reactivity of following compound in electrophilic substitution reaction is in the order of {:(1., C_(6)H_(5)-CH_(3), 3.,C_(6)H_(5)-Cl),(2.,C_(6)H_(5)-Br,4.,C_(6)H_(5)-NO_(2)):}

Answer»

`1 gt 2 gt 3 gt 4`
`4 gt 3 gt 2 gt 1`
`1 gt 4 gt 3 gt 2`
`1 gt 3 gt 2 gt 4`

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