Question
State reasons for each of the following happenings:
(i) Sulphur vapour exhibits some paramagnetism.
(ii) Unlike phosphorus nitrogen shows little tendency for catenation.
Solution
(i) Sulphur vapours (S2) show some paramagnetism this is because in vapour state sulphur has two unpaired electron, like O2 due to presence of unpaired electron.
(ii) Nitrogen forms multiple bonds whereas phosphorus does not therefore, nitrogen shows little tendency for catenation. N—N bonds is weaker than P—P bond.
