(a)
Alkyl halides can be reduced to hydrocarbons by means of $Zn - Cu$ couple in presence of alcohol.
$C_{2}H_{5}I\underset{C_{2}H_{5}OH}{\overset{\ \ \ Zn - Cu\ \ }{\rightarrow}}C_{2}H_{6} + HI$
ethane
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.