MCQ
.


- A$\begin{array}{*{20}{c}}
{\begin{array}{*{20}{c}}
H \\
|
\end{array}} \\
{C{H_3} - C - OD} \\
{\,|\,} \\
{\,\,\,\,\,\,\,C{H_3}}
\end{array}$ - B

- ✓

- D






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