• # question_answer Which of the following may exist in enantiomorphs [CBSE PMT 1988] A) $C{{H}_{3}}-\overset{C{{H}_{3}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}{\mathop{\overset{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}{\mathop{CH-COOH\,}}\,}}\,$ B) $C{{H}_{2}}=CHC{{H}_{2}}C{{H}_{2}}C{{H}_{3}}$ C) $C{{H}_{3}}-\overset{N{{H}_{2}}\,\,\,\,\,\,\,\,\,\,\,\,}{\mathop{\overset{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}{\mathop{CH-C{{H}_{3}}\,}}\,}}\,$ D) $C{{H}_{3}}-C{{H}_{2}}-\overset{N{{H}_{2}}\,\,\,\,\,\,\,\,\,\,\,\,}{\mathop{\overset{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}{\mathop{CH-C{{H}_{3}}}}\,}}\,$

$C{{H}_{3}}-C{{H}_{2}}-\underset{H\,\,\,\,\,\,\,\,\,}{\overset{N{{H}_{2}}}{\mathop{\underset{|\,\,\,\,\,\,\,\,\,\,\,}{\overset{|\,\,\,\,\,\,\,\,\,\,}{\mathop{{{C}^{*}}\,\,\,-\,}}}\,}}}\,C{{H}_{3}}$ Chiral centre is present. Hence, it exists as optical isomers or enantiomorphs.