$\begin{array}{*{20}{c}}
{\,\,\,\,\,\,C{H_3}} \\
| \\
{C{H_3} - C - OH} \\
| \\
{\,\,\,\,\,\,C{H_3}}
\end{array}\, \to \begin{array}{*{20}{c}}
{\,\,\,C{H_3}} \\
| \,\,\,\,\\
{C{H_3} - {C^ \oplus } - O{H^ - }} \\
| \,\,\,\,\\
{C{H_3}}
\end{array}$
$3^o$ કાર્બોનિયમ આયન

${image}$

$[Figure]$ $\xrightarrow[{2.\,C{H_3}I\,(l.\,eq.)}]{{1.\,{K_2}C{O_3}}}$