In the following questions two or more options may be correct.
Diamagnetic species are those which contain no unpaired electrons. Which among the following are dimagnetic?
Diamagnetic species have no unpaired electrons in the molecular orbital. These species repel the magnetic field.
The N2 molecule has no unpaired electron in the valence shell/molecular orbital. Thus, it is diamagnetic in nature.
N22- and O2 have unpaired electron so they are paramagnetic in nature.