$\xrightarrow{{{H_2}O/{H^ + }}}\begin{array}{*{20}{c}}
O \\
{||} \\
{C{H_3} - C - C{H_3}}
\end{array}\, + \, Mg < \begin{array}{*{20}{c}}
{O{C_2}{H_5}} \\
I
\end{array}$
$\xrightarrow[{(ii)\,{H_2}O/{H^ + }}]{{(i)\,C{H_3}MgI}}\begin{array}{*{20}{c}}
{OH} \\
| \\
{C{H_3} - C - C{H_3}} \\
| \\
{\,\,\,\,\,C{H_3}}
\end{array}\, + \, Mg < \begin{array}{*{20}{c}}
{OH} \\
I
\end{array}$
તૃતીયક બ્યુટાઇલ આલ્કોહોલ
$C{H_3}C{H_2}OH\xrightarrow{{P + {I_2}}}A\xrightarrow[{ether}]{{Mg}}B\xrightarrow{{HCHO}}C\xrightarrow{{{H_2}O}}D$
$I.\,\,C{H_3}C{H_2}C{H_2}C{H_2}OH\,$
$II.\,\,C{H_3} C{H_2}C{H_2}CHO\,$
$ III.\,\,C{H_3}C{H_2}C{H_2}COOH\,$
$1. {{H}_{3}}C-\overset{+}{\mathop{O}}\,{{H}_{2}}\to CH_{3}^{+}+{{H}_{2}}O$
$2. (CH_3)_3 C - \overset{+}{\mathop{O}}\,{{H}_{2}} \to (CH_3)_3 C^+ + H_2O$
$3. (CH_3 )_2CH - \overset{+}{\mathop{O}}\,{{H}_{2}} \to (CH_3)_2 CH^+ + H_2O$