Assign a reason for each of the following statements:

Question

Assign a reason for each of the following statements:

Assign a reason for each of the following statements:
(i) Ammonia is a stronger base than phosphine.
(ii) Sulphur in vapour state exhibits a paramagnetic behaviour.

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Salim Ahmed Kawsar · Answer 1 · Feb 05, 2023 15:29:48

(i) As the atomic size of nitrogen is smaller than phosphorus, therefore electron density on nitrogen atom is higher than that on phosphorus atom. Consequently the tendency of N in NH₃to donate its lone pair of electrons is much higher than that of P in PH₃ . Thus, ammonia is stronger base than phosphine.
(ii) In vapour state sulphur partly exists as S₂molecule which has two unpaired electrons in the antibonding π* orbitals like O₂and, hence exhibits paramagnetic behaviour.

Assign a reason for each of the following statements:

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