question_answer

Account for the following (i) is more basic than PH^ (ii)  has higher boiling point than (iii) is a fairly inert gas

Answer:

   (i) Central atom of ammonia is smaller than the central atom of phosphine. So,  is more basic than . (ii) HF forms intermolecular hydrogen bond. So, HF has higher boiling point than . (iii)  has high bond dissociation enthalpy. So,  is fairly inert gas.