MCQ
$\begin{array}{*{20}{c}}
{O\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{||\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{Et - {\text{ }}O - {\text{ }}C - {\text{ }}O - {\text{ }}Et\xrightarrow[{(2){H_3}{O^ \oplus }}]{{\left( 1 \right){\text{ }}C{H_3}MgBr\,\,\left( {excess} \right)}}(A),}
\end{array}$
{O\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{||\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{Et - {\text{ }}O - {\text{ }}C - {\text{ }}O - {\text{ }}Et\xrightarrow[{(2){H_3}{O^ \oplus }}]{{\left( 1 \right){\text{ }}C{H_3}MgBr\,\,\left( {excess} \right)}}(A),}
\end{array}$
Product $(A)$ is
- A$\begin{array}{*{20}{c}}
{O\,\,\,\,\,\,\,\,\,} \\
{||\,\,\,\,\,\,\,\,\,\,} \\
{C{H_3} - {\text{ }}C - {\text{ }}O - {\text{ }}Et}
\end{array}$ - B$\begin{array}{*{20}{c}}
{\,\,\,O}\\
{\,\,\,||}\\
{C{H_3} - {\rm{ }}C - {\rm{ }}C{H_3}}
\end{array}$ - ✓$\begin{array}{*{20}{c}}
{\,\,\,\,\,\,OH}\\
{\,|}\\
{C{H_3} - {\rm{ }}C - {\rm{ }}C{H_3}}\\
{\,|}\\
{\,\,\,\,\,\,\,C{H_3}}
\end{array}$ - D${C{H_3} - {\rm{ }}C{H_2} - {\rm{ }}C{H_3}}$
