• # question_answer The number of possible alcoholic isomers for ${{C}_{4}}{{H}_{10}}O$ are [DPMT 1984; MNR 1986] A) 4 B) 2 C) 3 D) 5

1. $\underset{\text{Butan-1-ol}}{\mathop{C{{H}_{3}}-C{{H}_{2}}-C{{H}_{2}}-C{{H}_{2}}-OH}}\,$ 2. $COOH-\underset{OH\,}{\overset{C{{H}_{3}}}{\mathop{\underset{|\,\,\,\,\,\,\,}{\overset{|\,\,\,\,\,\,\,\,}{\mathop{{{C}^{*}}\,-\,}}}\,}}}\,C{{H}_{2}}-C{{H}_{3}}$ 3. $\underset{\text{2 methyl propan-1-ol}}{\mathop{C{{H}_{3}}-\underset{C{{H}_{3}}}{\mathop{\underset{|\,\,\,\,\,}{\mathop{CH}}\,}}\,-C{{H}_{2}}-OH}}\,$ 4. $\underset{\text{2-Methyl propan-2-ol}}{\mathop{C{{H}_{3}}-\underset{OH\,}{\overset{C{{H}_{3}}}{\mathop{\underset{|\,\,\,\,\,\,\,\,\,}{\overset{|\,\,\,\,\,\,\,\,}{\mathop{C\,\,-\,\,}}}\,}}}\,C{{H}_{3}}}}\,$