15. POLYMERS (HM)
Explanation:
संघनन बहुलकों का निर्माण संघनन अभिक्रिया के द्वारा होता है। इस प्रक्रिया में \({H_2}O,\,C{O_2}\) आदि सरल अणुओं की हानि होती है।
$\begin{array}{*{20}{c}}
{\mathop {_{C{H_3}}^{C{H_3}} > C\, = \,O}\limits_{Acetone} + {H_2}CH - C - C{H_3}} \\
{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,||} \\
{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,O}
\end{array}$ $\xrightarrow[{HCl}]{{dil}}$ $\mathop {\begin{array}{*{20}{c}}
{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,O\,\,\,\,\,\,\,} \\
{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,||\,\,\,\,\,} \\
{{H_2}O + _{C{H_3}}^{C{H_3}} > C = CH - C - C{H_3}}
\end{array}}\limits_{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,Mesityl\,\,oxide} $
