Identify likely groups and identify likely signals on the IR, A and B. (ex. OH, NH, C=C, C-H sp3, aromatic etc)

3) Identify likely groups and identify likely signals on the IR. (ex. OH,NH,C=C,CH sp3, aromatic etc) A) B) \begin{tabular}{|rr|rr|rr|rr|} \hline 2989 & 17 & 2693 & 74 & 1383 & 20 & 1024 & 60 \\ 2979 & 9 & 2604 & 81 & 1351 & 24 & 935 & 58 \\ 2935 & 26 & 1952 & 81 & 1297 & 58 & 917 & 68 \\ 2868 & 10 & 1490 & 58 & 1279 & 62 & 846 & 43 \\ 2804 & 41 & 1457 & 53 & 1126 & 4 & 794 & 70 \\ 2777 & 55 & 1444 & 41 & 1077 & 25 & 501 & 64 \\ 2743 & 70 & 1416 & 57 & 1043 & 42 & 498 & 74 \\ \hline \end{tabular}