13. HYDROCARBONS (HM)
Explanation:
(b) $\begin{array}{*{20}{c}}
{C{H_3} - C = C{H_2}} \\
{|\,\,} \\
{\,\,\,\,\,C{H_3}}
\end{array} + HBr\xrightarrow[{Peroxide}]{}$ $\begin{array}{*{20}{c}}
{H\,\,\,\,\,\,\,\,\,\,\,\,} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{C{H_3} - C - C{H_2} - Br} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,} \\
{C{H_{3\,\,\,\,\,\,\,\,\,\,}}}
\end{array}$