In Wurtz reaction, alkyl halides react with

Alkyl halides give alkane when react with sodium in ether. This is called Wurtz reaction.

$\mathrm{R}-\mathrm{Cl}+2\mathrm{Na}+\mathrm{R}-\mathrm{Cl}\stackrel{\text{ether}}{\to }\underset{\text{alkane}}{\mathrm{R}-\mathrm{R}}+2\mathrm{NaCl}$