Ncert Exercises & Solutions

Alkyl halides are prepared from alcohols by treating with

$1 . HCl + {ZnCl}_{2} 2 . Red P + {Br}_{2} 3 . H_{2} {SO}_{4} + Kl 4 . All of the above$

(a) Alcohol when reacted with HCI + ZnCl2, then formation of alkyl halide will occur,

$R O H + C H l \overset{Z n C l_{2}}{\to} R C l + H_{2} O$
$(A l k y l h a l i d e)$

(b) Alcohol when reacted with red P and X, then formation of alkyl halide product will occur.

$R — O H \overset{R e d P / B r}{\to} R — X$
$(A k y l h a l i d e)$

form Hl. therefore, alkyl iodide will not produce if the alcohols are treated with

$H_{2} S O_{4}$ + Kl.