Alcohol, Phenol and EtherHard

Question

An unknown alcohol is treated with the ″Lucasreagent′ to determine whether the alcohol is primary, secondary or tertiary. Which alcohol reacts fastest and by what mechanism :-

Options

A.secondary alcohol by SN1
B.tertiary alcohol by SN1
C.secondary alcohol by SN2
D.tertiary alcohol by SN2

Solution

Its 3o (Tertiary alcohol) which reacts fastest by SN1 mechanism.

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