$C{H_3}C \equiv \,C\,C{H_2}C{H_3}\mathop {\xrightarrow[{(2)\;Hydrolysis}]{}}\limits^{(1)\;\;{O_3}} $ .......
${{C}_{2} {H}_{5} {OH}}{\longrightarrow}$ મુખ્ય નીપજ ${ }^{\prime} {A}^{\prime}$
નીપજ $A$ કઈ છે?