Which of the following reaction(s) can be used for the preparation of alkyl halides? (I) CH3CH2OH+HCl⟶ anh. ZnCl2 (II) CH3CH2OH+HCl⟶(III)CH33COH+HCl⟶(IV)CH32CHOH+HCl⟶ anh. ZnCl2
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a
I and II only
b
IV only
c
III and IV only
d
I, III and IV only
answer is D.
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Detailed Solution
1° and 2° alcohols react with HCl in presence of anhydrous ZnCl2 as catalyst while in case of 3° alcohols, ZnCl2 is not required.