c
(c) \(\mathop {C{H_3} - C{H_2} - C{H_2} - C{H_2} - C{H_2} - OH}\limits_{{\rm{Pentan - 1 - ol}}} \)
\(C{H_3} - O - {C_3}{H_7}\)
\(\mathop {\mathop {C{H_3}}\limits^{4{\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} }  - \mathop {C{H_2}}\limits^{3{\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} }  - \mathop {\mathop {\mathop {CH}\limits^{2{\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} } {\mkern 1mu} {\mkern 1mu} }\limits_{|{\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} } }\limits_{C{H_{3\,\,}}}  - \mathop {C{H_2}}\limits^{1{\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} }  - OH}\limits_{2 - {\text{Methyl}}{\kern 1pt} {\kern 1pt} {\text{butan}} - {\text{l}} - {\text{ol}}} \)
\(\mathop {\mathop {C{H_3}}\limits^{3\,\,\,\,\,\,\,\,\,} - \mathop {\mathop {\mathop {C\,\,\, - \,}\limits^{2\,\,\,\,\,\,\,} \,}\limits_{|\,\,\,\,\,\,\,\,\,\,}^{|\,\,\,\,\,\,\,\,\,} }\limits_{C{H_3}\,\,\,}^{C{H_3}\,} \mathop {C{H_2}}\limits^{1\,\,\,\,\,\,\,\,\,\,} - OH}\limits_{2,2 - {\rm{Dimethyl}}\,\,{\rm{propan}} - {\rm{l}} - {\rm{ol}}} \)