Chapter 11, Problem 11F.11P

Interpretation Introduction

Interpretation:

The chromophore in propanone has to be identified. The value of absorptions for ${\text{π}}^{\ast }\leftarrow \text{n}$ or ${\text{π}}^{\ast }\leftarrow \text{π}$ have to be assigned.

Concept introduction:

Electronic spectra are formed by the excitation and relaxation process of electrons.  The excitation process is due to the transition of an electron from a lower energy level to a higher energy level.  The relaxation process is due to the transition of an electron from a higher energy level to lower energy level.