1-Bromopropane on reaction with ${\mathrm{LiAlH}}_4$ yields

The reaction will be as follows:-

${\mathrm{CH}}_3-{\mathrm{CH}}_2-{\mathrm{CH}}_2-\mathrm{Br} \stackrel{{\mathrm{LiAlH}}_4}{\to } {\mathrm{CH}}_3-{\mathrm{CH}}_2-{\mathrm{CH}}_3$

1-Bromopropane on reaction with ${\mathrm{LiAlH}}_4$ yields Propane.

Propane is a three-carbon alkane gas (C₃H₈). It is a gas at room temperature and pressure, but it can be compressed into a transportable liquid.