a
આલ્કેન $\xrightarrow{{{{\text{O}}_{\text{3}}}}}{\mkern 1mu} \begin{array}{*{20}{c}}
{\,\,\,\,\,\,\,\,\,\,\,\,O} \\
{\,\,\,\,\,\,\,\,\,\,\,||} \\
{C{H_3}C{H_2}C - H}
\end{array} + \begin{array}{*{20}{c}}
{C{H_3} - C - C{H_3}} \\
{||} \\
O
\end{array}$
તેથી આલ્કેન $\begin{array}{*{20}{c}}
{C{H_3}C{H_2}CH = C - C{H_3}} \\
{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,|} \\
{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,C{H_3}}
\end{array}$