Question

By constructing a molecular orbital picture for each of the following

molecules, determine whether it is paramagnetic or diamagnetic.



 B2

;

 O2

;

2 N2

;

CO;

2 C2​

Answer 1

Answer:

The molecular orbital of B2 has unpaired electrons in the 2p orbital hence it is classified as paramagnetic.

The molecular orbital of O2 is having lone electrons in the π*2px and π*2py hence O2 is also paramagnetic.

The molecular orbital of N2 is having completely paired electrons in the 2p orbital and hence is diamagnetic.

The molecular orbital of CO is also having all paired electrons in its orbitals hence CO is also diamagnetic.

Even the molecular orbital of C2 is having paired electrons in all of its orbital hence it is also diamagnetic.