Chemistry - Hydrocarbon Question with Solution | TestHub

$\begin{array}{l}\text{CH}\equiv \text{CH}\stackrel{{\text{NaNH}}_2}{\to }\text{CH}\equiv {\text{C}}^{-}{\text{Na}}^{+}\stackrel{{\text{CH}}_3\text{I}}{\to }\\ \text{CH}\equiv \text{C}-{\text{CH}}_3\stackrel{\text{Na}}{\to }{\text{CH}}_3-\text{C}\equiv \text{CNa}\stackrel{{\text{C}}_2{\text{H}}_5\text{I}}{\to }{\text{C}}_2{\text{H}}_5-\text{C}\equiv \text{C}-{\text{CH}}_3\end{array}$