a) In infrared spectroscopy, lighter atoms absorb at higher vibrational frequencies.
b) In infrared spectroscopy, stronger bonds absorb at lower wavenumbers, and weaker bonds absorb at higher wavenumbers.
c) In infrared spectroscopy, the broadening of the OH absorption band is due to hydrogen bonding.
d) In infrared spectroscopy, the OH absorption band widens as the OH concentration in the sample increases.
e) In infrared spectroscopy, a carbon-carbon triple bond vibrates at a lower frequency than a carbon-carbon single bond.
f) The C-OH bond of a carboxylic acid will have a higher wavenumber than the C-OH bond of an alcohol.
g) In infrared spectroscopy, a functional group will absorb IR radiation if its frequency matches the vibrational frequency (bends, stretches, etc.) of the functional group.
h) In infrared spectroscopy, different functional groups bend and stretch at the same vibrational frequencies.