What two strong absorptions are characteristic of the IR spectrum of carboxylic acids?
O A C=O absorption at 1710 $cm^{-1}$ and an O-H absorption at 2500-3500 $cm^{-1}$.
A C=O absorption at 1600 $cm^{-1}$ and an O-H absorption at 2500-3000 $cm^{-1}$.
O A C=O absorption at 1710 $cm^{-1}$ and a C-H absorption at 3000 $cm^{-1}$.
O A C=O absorption at 1500 $cm^{-1}$ and an O-H absorption at 2500-3500 $cm^{-1}$.