Absorption of UV-visible radiation by a molecule results in ___________ transitions.
A) electronic
B) nuclear
C) rotational
D) vibrational
E) None of these

Question

Quizplus · Accepted Answer

UV-visible radiation corresponds to energies that are in the range of exciting electrons from occupied molecular orbitals (HOMO) to unoccupied molecular orbitals (LUMO). We call these transitions electronic transitions. Choices B), C), and D) correspond to transitions that occur at higher energies and involve excitation of the nucleus, rotation of the molecule, or vibration of the bonds, respectively.

Absorption of UV-Visible Radiation by a Molecule Results in ___________