Mark out the correct statement(s).

Options

A. Line spectra contain information about atoms only.
B. Line spectra contain information about both atoms and molecules.
C. Band spectra contain information about both atoms and molecules.
D. Bamd spectra contain information about molecules only.

Answer

B, D

Explanation

Line emmision spectra camn be obtained for atoms and molecules both. An atom or molecule in an excited state emits photons by making a transition from excited state to ground state thus consituting line emission spectra.
The wavelength emitted by the molecular energy levels which are generally grouped into several bunches are also grouped and each group is well separated from the other. The spectrum in this case looks like a band spectrum.