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  on reaction with finely divided silver produced silver halide.
PCI5 + 2Ag  2AgCl + PCl3
AgCl on further reaction with aqueous ammonia solution produces a soluble complex of [Ag (NH3)2]+ Cl-
AgCl + 2NH3 (ag)  [Ag(NH3)2]+Soluble complex CI-