List of top Chemistry Questions on Molecular Spectroscopy & Photochemistry asked in CPET

The number of normal modes of vibration in benzene (\(C_6H_6\)), a planar molecule with 12 atoms, is:

When a transition between states of the same multiplicity occurs without emitting light, the process is called:

The percentage transmittance of a solution having an absorbance (optical density) of 1.0 is: (Given \(A = -\log_{10} T\))