MCQ
Hydrolysis of $PCl_5$ gives
- A$H_3PO_2$
- B$H_3PO_3$
- ✓$H_3PO_4$
- DNone of these

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(image) $\xrightarrow{{NBS}}\,\,\xrightarrow[{ether}]{{Mg}}\,\xrightarrow[{2.{H^ + }}]{{1.C{O_2}}}\,X$
$Image$
$\begin{array}{*{20}{c}}
{C{H_3}}\\
{|\,\,\,\,\,}\\
{{C_6}{H_5}C{H_2} - C - C{H_2} - C{H_3}}\\
{|\,\,\,\,\,}\\
{Br\,\,\,}
\end{array}$ $\xrightarrow[{{C_2}{H_5}OH}]{{{C_2}{H_5}ONa}}$