The compound from the following list that exhibits the infrared spectrum below is (Use your cursor to read the IR frequency scale) OH Flash Installation and Troubleshootingm Corp Infrared spectra provided courtesy of Thermo Electron Corp 110% Wavenumber 0% 4000 3500 3000 2500 2000 1500 1000450 Wavenumber (cm’)
Answer 1) C. It has peak small peak at 3400 cm-1 which corresponds to O-H bond. Peak at 3100 cm-1 corresponds to aromatic C-H. Peak at 2800-3000 cm-1 corresponding to aliphatic C-H (methyl group). Peak at 1475-1600 cm-1 corresponds to aromatic C=C. Peak at 1300 cm-1 indicates the presence of C-O group. No other molecule has such peaks.
Answer 2) A. Compound A has peak at 3400cm-1 which corresponds O-H group. Peak at 3000cm-1corresponds to aliphatic C-H. Peak at 2250 cm-1 corresponds to C-triple bond-C.
Answer 3) Aromatic corboxylic acid ( Peaks at 3400cm-1 (O-H), 3100 (aromatic C-H), 1720cm-1 (acid carbonyl C=O), 1475-1600 cm-1aromatic C=C).
Answer 4) Alochol and carobonyl C=O (1700 cm-1 ) are present