12. ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES (HM)
Explanation:
(c)\(C{H_3} - \mathop {\mathop {{C^{{4^o}}} - }\limits_{|\,\,\,\,\,\,\,\,}^{\mathop {|\,\,\,\,\,\,\,\,\,}\limits^{C{H_3}} } }\limits_{C{H_3}} \,\mathop {C{H_2}}\limits^{{2^o}\,\,\,\,} - \mathop {\mathop {\mathop {CH}\limits_{|\,\,\,\,\,\,} }\limits^{{3^o}\,\,\,} }\limits_{C{H_3}} - \mathop {C{H_3}}\limits^{{1^o}\,\,\,\,\,} \)
