$C{H_2} = C{H_2}\,\xrightarrow{{{O_2}/Ag}}\,X\,\xrightarrow{{473\,K}}\,Y$

$\begin{matrix}
   O\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \,\, \\
   ||\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,  \\
   N\equiv C-C{{H}_{2}}-C-C{{H}_{2}}-CH=C{{H}_{2}}\to   \\
\end{matrix}$ $\begin{matrix}
   OH\,\,\,\,\,\,\,\,\,  \\
   |\,\,\,\,\,\,\,\,\, \,\,\,\, \\
   N\equiv C-C{{H}_{2}}-\underset{H}{\mathop{C}}\,-C{{H}_{2}}-CH=C{{H}_{2}}  \\
\end{matrix}$

$I :$ ગ્લિસરોલ                                           $II : $ ગ્લાયકોલ

$III : 1 , 3-$ પ્રોપિનડાયોલ                  $IV :$ મિથોકસી $ -2- $ પ્રોપેનોલ 

$1. {{H}_{3}}C-\overset{+}{\mathop{O}}\,{{H}_{2}}\to CH_{3}^{+}+{{H}_{2}}O$
$2. (CH_3)_3 C - \overset{+}{\mathop{O}}\,{{H}_{2}} \to (CH_3)_3 C^+ + H_2O$
$3. (CH_3 )_2CH - \overset{+}{\mathop{O}}\,{{H}_{2}} \to (CH_3)_2 CH^+ + H_2O$