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  • An unknown alcohol is treated with the "Lucas reagent "to determine whether the alcohol is primary ,secondary or tertiary, Which alcohol reacts fastest and by what mechanism:<div clas

An unknown alcohol is treated with the "Lucas reagent "to determine whether the alcohol is primary ,secondary or tertiary, Which alcohol reacts fastest and by what mechanism:

Option: 1

tertiary alcohol by SN2


Option: 2

secondary alcohol by SN1


Option: 3

tertiary alcohol by SN1


Option: 4

secondary alcohol by SN2


Answers (1)

best_answer

As discussed

Test of alcohol Lucas test -

ZnCl_{2}+conc.HCl\:\:is\:called\:Lucas\:reagent

- wherein

1^{\circ}alcohol\rightarrow Cloudiness\:appears\:on\:heating

2^{\circ}alcohol\rightarrow Cloudiness\:appears\:after\:5\:minutes

3^{\circ}alcohol\rightarrow Cloudiness\:appears\:immediately

 

 Tertiary alcohol reacts fastest with Lucas reagent through SN1 mechanism via tertiary carbocation

Posted by

Ritika Jonwal

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