MCQ
Which is the most thermodynamically stable allotropic form of phosphorus
- ARed
- BWhite
- ✓Black
- DYellow
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$\begin{array}{*{20}{c}}
{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,C{H_2}OC{H_3}} \\
| \\
{\mathop {C{H_3}CHBr}\limits_{(R)} }
\end{array}$ $\xrightarrow[{acetone}]{{NaCN}}$ $\begin{array}{*{20}{c}}
{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,C{H_2}OC{H_3}} \\
| \\
{\mathop {C{H_3}CHCN}\limits }
\end{array}$

