Explanation:
\[\begin{gathered}
{\text{C}}{{\text{H}}_{\text{3}}}{\text{CH(Cl)C}}{{\text{H}}_{\text{2}}}{\text{C}}{{\text{H}}_{\text{2}}}{\text{CH(OH)C}}{{\text{H}}_{\text{3}}} \hfill \\
\,\,\,\begin{array}{*{20}{l}}
{\text{6}}&{\,\,\,\,\,{\text{5}}}&{\,\,\,\,\,\,\,\,{\text{4}}}&{\,\,\,\,\,\,\,{\text{3}}}&{\,\,\,\,\,\,{\text{2}}}&{\,\,{\text{1}}}
\end{array} \hfill \\
\end{gathered} \]
\(-\mathrm{OH}\) group is higher prior than -Cl group, so it gets lowest possible number.
Name of the compound is 5-chlorohexan-2-ol