An unknown alcohol is treated with "Lucas reagent" to determine wheter the alcohol is primary. Secondary or teritary. Which alcohol reacts fastest and by what mechanism?
A. tertiary alcohol by `S_(N^(1))`
B. secondary alcohol by `S_(N^(1))`
C. tertiary alcohol by `S_(N^(2))`
D. secondary alcohol by `S_(N^(2))`

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1 Answers

Correct Answer - A
With Lucas reagent, tertiary alcohol reacts fastest by `S_(N^(1))` mechanism because tertiary carbocation is formed in the rate determining or slow step.

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