$C{H_3}C{H_2}OH\xrightarrow{{P + {I_2}}}A\xrightarrow{{Mg}}B\xrightarrow{{HCHO}}C\xrightarrow{{{H_2}O}}D$
$\begin{array}{*{20}{c}}
\,\,\,\,\,\,\,\,H \\
\,\,\,\,\,\,\,\,| \\
{H - C - } \\
\,\,\,\,\,\,\,\,| \\
{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,C{H_2}C{H_3}\,}
\end{array}OMgI\xrightarrow{{{H_2}O}}\begin{array}{*{20}{c}}
H\,\,\,\, \\
|\,\,\,\, \\
{H - C - OH} \\
|\,\,\,\, \\
{\,\,\,\,\,\,\,\,\,\,\,\,\,C{H_2}C{H_3}}
\end{array}$
$n-$ પ્રોપાઇલ આલ્કોહોલ