JEE Main Chemistry question

Tertiary butyl alcohol gives tertiary butyl chloride on treatment with

(A)Conc. HCl/anhy. Correct
(B)KCN
(C)NaOCl
(D)

Answer: (A)

Solution

Tertiary alcohols react readily with the Lucas reagent (conc. HCl with anhydrous ) because the carbocation formed from a tertiary alcohol is highly stabilised, allowing rapid substitution of by : (CH_3)_3C-OH \xrightarrow{ZnCl_2/HCl} (CH_3)_3C-Cl. KCN would substitute to give a nitrile

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Question ID VK-148012