$X-Y-Z$
$\begin{array}{*{20}{c}}
{C{H_3} - CHC{H_2}CHO} \\
{\,|\,\,\,\,\,\,\,\,\,\,\,\,} \\
{OH\,\,\,\,\,\,}
\end{array}$
This product is obtained when $2$ molecules of $CH_3CHO$ are heated with concentrated alkali $(NaOH)$
$\mathop {C{H_3}CHO\,}\limits_{'X'} \, + \,\mathop {C{H_3}CHO\,}\limits_{'Y'} \xrightarrow[{'Z'}]{{NaOH}}$ $\begin{array}{*{20}{c}}
{C{H_3}CH - C{H_2} - CHO} \\
{\,|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{OH\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}
\end{array}$
[Note : The aldehydes having $\alpha $ - hydrogen atom on heating with concentrated alkali give brown resinous mass; aldol condensation ]
અહીં $P$ શું છે?
$(I)$ $\begin{array}{*{20}{c}}
O \\
{||} \\
{Ph\, - C - Ph}
\end{array}$
$(II)$ $\begin{array}{*{20}{c}}
{\,\,\,\,O} \\
{\,\,\,\,||} \\
{C{H_3} - C - H}
\end{array}$
$(III)$ $\begin{array}{*{20}{c}}
O \\
{||} \\
{C{H_3} - C - C{H_3}}
\end{array}$
is
$C{H_3}COH\xrightarrow[{{\text{Zn(Hg)/Conc}}{\text{. HCI}}}]{{\left[ H \right]}}C{H_3}C{H_3}$ શું હશે ?