i need help identifying the functional groups of the IR and the unknown compund using the the IR

\begin{tabular}{|l|} \hline 2-propanol \\ \hline 2-methyl-2-propanol \\ \hline 2-propen-1-ol \\ \hline 1-propanol \\ \hline 2-butanol \\ \hline 2-methyl-2-butanol \\ \hline 2-methyl-1-propanol \\ \hline 3-pentanol \\ \hline 1-butanol \\ \hline 2-pentanol \\ \hline 3,3-dimethyl-2-butanol \\ \hline 2,3-dimethyl-2-butanol \\ \hline 3-methyl-3-pentanol \\ \hline 2-methyl-1-butanol \\ \hline 2-chloroethanol \\ \hline 3-methyl-1-butanol \\ \hline 4-methyl-2-pentanol \\ \hline 2,2-dimethyl-1-butanol \\ \hline 1-pentanol \\ \hline 2,4-dimethyl-3-pentanol \\ \hline cyclopentanol \\ \hline 1-hexanol \\ \hline cyclohexanol \\ \hline 2-furfuryl alcohol \\ \hline 1-heptanol \\ \hline 1-octanol \\ \hline benzyl alcohol \\ \hline 2-phenylethyl alcohol \\ \hline cinnamyl alcohol \\ \hline 1-menthol \\ \hline 1-hexadecanol \\ \hline 1-octadecanol \\ \hline benzhydrol \\ \hline benzoin \\ \hline cholesterol \\ \hline ergosterol \\ \hline \end{tabular}