MCQ
$\begin{matrix}
O\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \\
||\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \\
P{{h}_{2}}CH-C-H\xrightarrow{aqueous\,acid}\underset{81\%}{\mathop{(A)}}\,+\underset{2\%}{\mathop{enol}}\,+\underset{17\%}{\mathop{aldehyde}}\, \\
\end{matrix}$
O\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \\
||\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \\
P{{h}_{2}}CH-C-H\xrightarrow{aqueous\,acid}\underset{81\%}{\mathop{(A)}}\,+\underset{2\%}{\mathop{enol}}\,+\underset{17\%}{\mathop{aldehyde}}\, \\
\end{matrix}$
Product $(A)$ of above reaction will be
- A$\begin{matrix}
Ph-C=CH-O \\
|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \\
Ph\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \\
\end{matrix}$ - B$\begin{matrix}
\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,OH \\
\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,| \\
P{{h}_{2}}CH-C{{H}_{2}} \\
\end{matrix}$ - ✓$\begin{matrix}
\,\,\,\,\,\,\,\,\,\,\,OH \\
\,\,\,\,\,\,\,| \\
P{{h}_{2}}CH-CH-OH \\
\end{matrix}$ - D$\begin{matrix}
\,\,\,\,\,\,\,\,\,\,O \\
\,\,\,\,\,\,\,\,\,\,|| \\
P{{h}_{2}}CH-C-C{{H}_{3}} \\
\end{matrix}$
