1.

Which of the following compounds would not react with Lucas reagent at room temperature?

Answer»

`H_(2)C = CHCH_(2)OH`
`C_(6)H_(5)CH_(2)OH`
`CH_(3)CH_(2)CH_(2)OH`
`(CH_(3))_(3)COH`

Solution :The order of reactivity of ALCOHOLS towards LUCAS reagent is
`3^(@) "alcohol" gt2^(@) "alcohol" gt ^(@) "alcohol"`.
`1^(@)` alcohols do not react with Lucas reagent at room TEMPERATURE. It requires HIGH temperature. The benzyl and allyl alcohols react as rapidly as `3^(@)` alcohols with Lucas reagent because their cations are resonance STABILISED and stable as `3^(@)` cations.


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