• # question_answer 2) Write structures of different isomeric alkyl groups corresponding to the molecular formula ${{C}_{5}}{{H}_{11}}$Write IUPAC names of alcohols obtained by the attachment of OH groups at different carbons of the chain.

Structure of ${{\mathbf{C}}_{\mathbf{5}}}{{\mathbf{H}}_{\mathbf{11}}}$alkyl group IUPAC names of the corresponding alcohols (i) $C{{H}_{3}}-C{{H}_{2}}-\underset{1-Pentyl}{\mathop{C{{H}_{2}}}}\,-C{{H}_{2}}-C{{H}_{2}}-$ $C{{H}_{3}}-C{{H}_{2}}-\underset{Penran\,-1-\text{ol}}{\mathop{C{{H}_{2}}-C{{H}_{2}}}}\,-C{{H}_{2}}-OH$ (ii) $C{{H}_{3}}-\underset{\underset{2-Pentyl}{\mathop{|}}\,}{\mathop{CH}}\,-C{{H}_{2}}-C{{H}_{2}}-C{{H}_{3}}$ $\underset{\text{Pentan}\,-2-ol}{\mathop{C{{H}_{3}}-\underset{\underset{OH}{\mathop{|}}\,}{\mathop{CH}}\,-C{{H}_{2}}-C{{H}_{2}}-C{{H}_{3}}}}\,$ (iii) $C{{H}_{3}}-C{{H}_{2}}-\underset{\underset{3-Pentyl}{\mathop{|}}\,}{\mathop{CH}}\,-C{{H}_{2}}-C{{H}_{3}}$ $C{{H}_{3}}-C{{H}_{2}}-\underset{\underset{Pen\tan -3-ol}{\mathop{\begin{smallmatrix} | \\ OH \end{smallmatrix}}}\,}{\mathop{CH}}\,-C{{H}_{2}}-C{{H}_{3}}$ (iv) $C{{H}_{3}}-\underset{\underset{3-Methyl\,-1-butyl}{\mathop{\begin{smallmatrix} | \\ C{{H}_{3}} \end{smallmatrix}}}\,}{\mathop{CH}}\,-C{{H}_{2}}-C{{H}_{3}}$ $C{{H}_{3}}-\underset{\underset{\underset{3-Methylbu\tan -1-ol}{\mathop{C{{H}_{3}}}}\,}{\mathop{|}}\,}{\mathop{CH}}\,-C{{H}_{2}}-C{{H}_{2}}-OH$ (v) $C{{H}_{3}}-C{{H}_{2}}-\underset{\underset{\underset{20Methyl-1-butyl}{\mathop{\text{C}{{\text{H}}_{\text{3}}}}}\,}{\mathop{\text{ }\!\!|\!\!\text{ }}}\,}{\mathop{CH}}\,-C{{H}_{2}}-$ $C{{H}_{3}}-C{{H}_{2}}-\underset{\underset{\underset{3-Methylbu\tan -1-ol}{\mathop{C{{H}_{3}}}}\,}{\mathop{|}}\,}{\mathop{CH}}\,-C{{H}_{2}}-OH$ (vi) $C{{H}_{3}}-\underset{\underset{2-Methyl-2-butyl}{\mathop{|}}\,}{\overset{\overset{C{{H}_{3}}}{\mathop{|}}\,}{\mathop{C}}}\,-C{{H}_{2}}-C{{H}_{3}}$ $C{{H}_{3}}-\underset{\underset{\underset{2-Methyl-2-butyl}{\mathop{OH}}\,}{\mathop{|}}\,}{\overset{\overset{C{{H}_{3}}}{\mathop{|}}\,}{\mathop{C}}}\,-C{{H}_{2}}-C{{H}_{3}}$ (vii) $C{{H}_{3}}-\underset{\underset{\underset{3-Methyl-2-butyl}{\mathop{\text{C}{{\text{H}}_{\text{3}}}}}\,}{\mathop{\text{ }\!\!|\!\!\text{ }}}\,}{\mathop{CH}}\,-\underset{|}{\mathop{CH}}\,-C{{H}_{3}}$ $C{{H}_{3}}-\underset{3-\text{Methylbutan}\,\text{-2-ol}}{\mathop{\underset{\underset{\text{C}{{\text{H}}_{\text{3}}}}{\mathop{\text{ }\!\!|\!\!\text{ }}}\,}{\mathop{CH}}\,-\underset{\underset{\text{OH}}{\mathop{\text{ }\!\!|\!\!\text{ }}}\,}{\mathop{CH}}\,}}\,-C{{H}_{3}}$ (viii) $\underset{2,2-Dimethyl-1-propyl}{\mathop{C{{H}_{3}}-\underset{\underset{\text{C}{{\text{H}}_{\text{3}}}}{\mathop{\text{ }\!\!|\!\!\text{ }}}\,}{\overset{\overset{\text{C}{{\text{H}}_{\text{3}}}}{\mathop{\text{ }\!\!|\!\!\text{ }}}\,}{\mathop{C}}}\,-C{{H}_{2}}-}}\,$ $\underset{2,2-Dimethylpropan-1-ol}{\mathop{C{{H}_{3}}-\underset{\underset{\text{C}{{\text{H}}_{\text{3}}}}{\mathop{\text{ }\!\!|\!\!\text{ }}}\,}{\overset{\overset{\text{C}{{\text{H}}_{\text{3}}}}{\mathop{\text{ }\!\!|\!\!\text{ }}}\,}{\mathop{C}}}\,-C{{H}_{2}}-}}\,OH$