Following is the substitution reaction in which –CN replaces –Cl. ${\rm{R}} - {\rm{Cl}} + {\rm{KCN}}\xrightarrow{\Delta }{\rm{R}} - {\rm{CN}} + {\rm{KCl}}$ alcoholic To obtain propanenitrile, ${\rm{R\;}}-{\rm{\;Cl}}$ should be

JEE CHEMISTRY MCQ: HALOALKANES AND HALO ARENES

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Following is the substitution reaction in which –CN replaces –Cl.

\mathrm{R} - \mathrm{Cl} + \mathrm{KCN}\xrightarrow{\Delta }\mathrm{R} - \mathrm{CN} + \mathrm{KCl}

alcoholic

To obtain propanenitrile,

\mathrm{R\;}-\mathrm{\;Cl}

should be

View answer and explanation

Correct option: A

Chloroethane

Option A (Chloroethane) is correct because chloroethane reacts with KCN to directly produce propanenitrile.