Using IR spectroscopy, how can you best differentiate between the following two compounds (left = cmpd A. right = cmpd B)? MY OH OH B a. Using the functional group region, you will see a broad band for compound B only. b. Using the functional group region you will see a band for a secondary hydroxyl group for compound A only. c. Using the fingerprint region, you will see a band for a secondary hydroxyl group for compound A only. d. Using the fingerprint region, you will see a difference between the two compounds, but must use the literature or a reference compound to make the final determination. Ob Od Which set of IR bands (in cm 1) would you expect to see for the following compound? 2960, 2820, 2720. 1710 3400 (broad), 2990, 1800 O 1680, 1400, 1100 O 2999, 2960. 1710 3200, 1680, 1245. 1050 The IR spectra for the compound below shows three separate carbonyl (i.e., C=O) peaks at 1720, 1700, and 1670 cm-1. Which of the following represents the correct assignment of these IR bands? O A = 1670, B = 1700, C = 1720 O A = 1700, B = 1670, C = 1720 O A = 1720, B = 1700. C = 1670 O A = 1700, B - 1720, C = 1670