Q57 of 72 Page 96

PCl5 reacts with finely divided silver on heating and a white silver salt is obtained, which dissolves on adding excess aqueous NH3 solution. Write the reactions involved to explain what happens.

PCl5 reacts with silver to form white silver salt(AgCl). Which than dissolves on adding excess aqueous NH3 to form soluble complex

PCl5 + 2Ag 2AgCl(white ppt.) + PCl3


Agcl + 2NH3(aq) [Ag(NH3)]+Cl-


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