Which compound matches the IR spectrum best? A B C D E F
AnswerD is the compound. note: 1710 cm-1 is C=O for ketone. Thus, it may be D, E, F.
E should have peak of N-H in the range of > 3000 cm-1. F should have C=C-H absorptions at > 3000 cm-1. however, there has no any peak at > 3000 cm-1. Thus, E and F can be ruled out. Answer is then D.