Which of the following reaction(s) can be used for the preparation of alkyl halides?

(I)       CH_{3}CH_{2}OH+HCl\overset{anh.ZnCl_{2}}{\rightarrow}

(II)       CH_{3}CH_{2}OH+HCl \rightarrow

(III)       (CH_{3})_{3}COH+HCl \rightarrow

(IV)       (CH_{3})_{2}CHOH+HCl \overset{anh.ZnCl_{2}}{\rightarrow}

  • Option 1)

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

  • Option 2)

    (I) and (II) only

  • Option 3)

    (IV) only

  • Option 4)

    (III) and (IV) only

 

Answers (1)

As we learnt in 

Alcohols reaction with hydrogen halides -

Forms alkyl halides.

- wherein

ROH+HX\rightarrow RX+H_{2}O

 

 Tertiary alcohols forms alkyl halides but not easily due to the higher stability of tertiary carbocation 


Option 1)

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

This solution is correct 

Option 2)

(I) and (II) only

This solution is incorrect 

Option 3)

(IV) only

This solution is incorrect 

Option 4)

(III) and (IV) only

This solution is incorrect 

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