
One \(Cl\) and one \(I\) are present at second and third carbon atom respectively. The molecule has trans geometry across \(C = C\) bond.
Hence, it is named trans-\(2\)-chloro-\(3\)-iodo-\(2\)-pentene.



$\begin{array}{*{20}{c}}
{Me} \\
{|\,\,\,\,} \\
{{H_2}C - N - C - Et} \\
{\,\,\,\,\,\,|\,\,\,\,\,\,\,\,\,|\,\,} \\
{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,Me\,\,\,\,\,C{H_2}C{H_3}}
\end{array}$

