• # question_answer Which of the following compounds which is an optically active compound [UPSEAT 1999] A) 1-butanol B) 2-butanol C) 3-butanol D) 4-heptanol

2-butanol $(C{{H}_{3}}-\underset{OH}{\mathop{\underset{|\,\,\,\,\,\,}{\mathop{CH}}\,}}\,-C{{H}_{2}}-C{{H}_{3}})$ is optically active because it has asymmetric carbon atom.