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

Question

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 (A) (IV) only (B) (III) and (IV) only (C) (I), (III) and (IV) only (D) (I) and (II) only

Tardigrade Admin · Accepted Answer

(I) and (IV) can be used due to presence of anhydrous ZnCl2 (III) gives alkyl halide due to formation of more stable carbocation.

Q. Which of the following reaction(s) can be used for the preparation of alkyl halides ?
(I) $C H_{3} C H_{2} O H + H Cl anh . Z n C l_{2}$
(II) $C H_{3} C H_{2} O H + H Cl \to$
(III) $(C H_{3})_{3} CO H + H Cl \to$
(IV) $(C H_{3})_{2} C H O H + H Cl anh . Z n C l_{2}$

(IV) only

(III) and (IV) only

(I), (III) and (IV) only

(I) and (II) only

(I) and (IV) can be used due to presence of anhydrous $Z n C l_{2}$ (III) gives alkyl halide due to formation of more stable carbocation.

Q. Which of the following reaction(s) can be used for the preparation of alkyl halides ? (I) CH3​CH2​OH+HClanh.ZnCl2​​ (II) CH3​CH2​OH+HCl→ (III) (CH3​)3​COH+HCl→ (IV) (CH3​)2​CHOH+HClanh.ZnCl2​​