b
$\begin{array}{*{20}{c}}
{\,\,C{H_2}OH} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{CHOH} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{\,\,C{H_2}OH}
\end{array}\, + \,\begin{array}{*{20}{c}}
{\,\,COOH} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{\,\,COOH}
\end{array}\,\xrightarrow[{ - {H_2}O}]{{1010\,^oC}}\begin{array}{*{20}{c}}
{\,\,\,C{H_2} - OOC} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,|} \\
{\,\,\,\,\,\,\,\,CHOH\,\,\,\,\,\,\,\,\,\,COOH} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{C{H_2}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}
\end{array}\,\,\xrightarrow[{ - C{O_2}}]{\Delta }$
ફોર્મિક એસિડ(મિથેનોઇક એસિડ)
$\begin{array}{*{20}{c}}
{\,\,C{H_2} - OOCH} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{CHOH\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{\,\,C{H_2}OH\,\,\,\,\,\,\,\,\,\,\,\,}
\end{array}\,\xrightarrow{{{H_2}O}}\,\begin{array}{*{20}{c}}
{\,\,C{H_2}OH} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{CHOH} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{C{H_2}OH\,\,}
\end{array}\,\, + \,HCOOH$
ગ્લિસરોલ મોનો ફોર્મેંટ ગ્લિસરોલ