Sponsor Area

The P-Block Elements

Question
CBSEENCH12006930

Why does sulphur in vapour state exhibit paramagnetic character?

Solution

Sulphur exist as S8 molecule at ordinary temperature and pressure but at elevated temperature it gets dissociated and partly exists as S2 molecule in vapor phase.
In vapor phase S2 has two unpaired electron in its antibonding pi molecular orbitals and behave as paramagnetic material.