Single Choice

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) $$(CH_3)_2CHOH+HCl\xrightarrow {anh.ZnCl_2}$$

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

Solution

The reactions $$(I), (III)$$ and $$(IV)$$ only can be used for the preparation of alkyl halides.
Alkyl halide is prepared by the reaction of an alcohol with $$HCl$$ in which -$$OH$$ group is replaced with $$Cl$$.
Primary and secondary alcohols requires catalyst such as anhydrous zinc chloride.
Tertiary alcohols do not require such catalyst as they are more reactive.

SIMILAR QUESTIONS

Haloalkanes and Haloarenes

On heating with bleaching powder, ethyl alcohol is converted into:

Haloalkanes and Haloarenes

The best method to prepare neopentyl chloride is:

Haloalkanes and Haloarenes

Write the structure of the major organic product in each of the following reactions: $$CH_3CH_2CH_2OH+SOCl_2 \rightarrow $$

Haloalkanes and Haloarenes

In the following reaction sequence: $$\underset{(C_3H_6Cl_2)}{I} \xrightarrow {KOH(aq)} II \xrightarrow[(ii)H_2O/H^+]{(i)CH_3MgBr} III \xrightarrow{Anhy.ZnCl_2+Con.HCl} $$ give trubidity immediately

Haloalkanes and Haloarenes

Which statement is correct?

Haloalkanes and Haloarenes

Suggest the reagent that could be used to prepare these alkyl halides from alcohols.

Haloalkanes and Haloarenes

The product $$(B)$$ is:

Haloalkanes and Haloarenes

The number of possible monobromo products is (excluding stereoisomers):

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