1. Tardigrade
  2. Question
  3. Chemistry
  4. Which of the following reaction(s) can be used for the preparation of alkyl halides ? (I) CH3CH2OH + HCl xrightarrowanh.ZnCl2 (II) CH3CH2OH + HCl arrow (III) (CH3)3COH + HCl arrow (IV) (CH3)2CHOH + HCl xrightarrowanh.ZnCl2

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Q. Which of the following reaction(s) can be used for the preparation of alkyl halides ?
(I) $CH_3CH_2OH + HCl \xrightarrow{anh.ZnCl_2} $
(II) $ CH_3CH_2OH + HCl \rightarrow$
(III) $(CH_3)_3COH + HCl \rightarrow$
(IV) $(CH_3)_2CHOH + HCl \xrightarrow{anh.ZnCl_2}$

AIPMTAIPMT 2015Alcohols Phenols and Ethers

Solution:

(I) and (IV) can be used due to presence of anhydrous $ZnCl_2$ (III) gives alkyl halide due to formation of more stable carbocation.