Question: The trans-alkenes are formed by the reduction of alkynes with :
$\mathrm{NaBH}_{4}$
$\mathrm{Na} /$ liq. $\mathrm{NH}_{3}$
$\mathrm{Sn}-\mathrm{HCl}$
$\mathrm{H}_{2}-\mathrm{Pd} / \mathrm{C}, \mathrm{BaSO}_{4}$
Correct Option: , 2
Solution: