Select the correct statement from the following options. A. Molecular

select-the-correct-statement-from-the-following-options-a-molecular

Select the correct statement from the following options.

A. Molecular spectra arises from the transition of an electron between the molecular energy levels

B. In molecular transitions, electronic, rotational and vibration transitions occurs

C. Molecular spectra is more complicated than atomic spectra

D. All of the mentioned

I have been asked this question during an internship interview.

My query is from Origin of spectrum in portion Absorption Spectroscopy of Engineering Chemistry I

The correct choice is D. All of the mentioned

Easiest explanation: Molecular spectra arises from the transition of an electron between the molecular energy levels. In molecular transitions, electronic, rotational and vibration transitions occurs and molecular spectra is more complicated than atomic spectra.