M Prep | MCAT 2015 Question of the Day - Prep, Practice Questions, and More!

Q:	while monitoring a reaction, a student gathers the IR spectra at different timepoints. A strong, broad peak at 3200 cm^-1 is slowly replaced with a strong, sharp peak at 1750 cm^-1 upon completion of the reaction. Which of the following conversions has most likely occurred?

C-C to C=C

C=O to C-OH

C-OH to C=O

C=O to C=N