MCQ
Glycerol reacts with ${P_4} + {I_2}$ to form
- AAldehyde
- ✓Allyl iodide
- CAllyl alcohol
- DAcetylene
✓
Answer
Correct option: B.
Allyl iodide
b
(b)$\begin{array}{*{20}{c}}
{C{H_2} - OH} \\
{\mathop {\mathop C\limits^| }\limits_| {\mkern 1mu} H - OH{\mkern 1mu} } \\
{C{H_2}OH\,\,\,\,\,\,{\mkern 1mu} {\mkern 1mu} }
\end{array}\mathop {\xrightarrow{{{P_4} + {I_2}}}}\limits_{{\text{Small}}{\kern 1pt} {\kern 1pt} {\text{amount}}} {\mkern 1mu} \mathop {\begin{array}{*{20}{c}}
{C{H_2} - I} \\
{\mathop {\mathop C\limits^| }\limits_| {\mkern 1mu} H - I{\mkern 1mu} } \\
{C{H_2} - I}
\end{array}}\limits_{{\text{Unstable}}} {\mkern 1mu} \xrightarrow[{ - {I_2}}]{{}}{\mkern 1mu} \mathop {\begin{array}{*{20}{l}}
{C{H_2}{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} } \\
{\mathop {\mathop C\limits^{||} }\limits_| {\mkern 1mu} H{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} } \\
{C{H_2} - I}
\end{array}}\limits_{{\text{Allyl iodide}}} {\mkern 1mu} $
(b)$\begin{array}{*{20}{c}}
{C{H_2} - OH} \\
{\mathop {\mathop C\limits^| }\limits_| {\mkern 1mu} H - OH{\mkern 1mu} } \\
{C{H_2}OH\,\,\,\,\,\,{\mkern 1mu} {\mkern 1mu} }
\end{array}\mathop {\xrightarrow{{{P_4} + {I_2}}}}\limits_{{\text{Small}}{\kern 1pt} {\kern 1pt} {\text{amount}}} {\mkern 1mu} \mathop {\begin{array}{*{20}{c}}
{C{H_2} - I} \\
{\mathop {\mathop C\limits^| }\limits_| {\mkern 1mu} H - I{\mkern 1mu} } \\
{C{H_2} - I}
\end{array}}\limits_{{\text{Unstable}}} {\mkern 1mu} \xrightarrow[{ - {I_2}}]{{}}{\mkern 1mu} \mathop {\begin{array}{*{20}{l}}
{C{H_2}{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} } \\
{\mathop {\mathop C\limits^{||} }\limits_| {\mkern 1mu} H{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} } \\
{C{H_2} - I}
\end{array}}\limits_{{\text{Allyl iodide}}} {\mkern 1mu} $
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