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PCl(5) reacts with finely divided silver...

`PCl_(5)` reacts with finely divided silver on heating and a white silver salt is obtained, which dissolves on adding excess aqueous `NH_3` solution. Write the reactions involved to explain what happens.

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`PCl_5` will oxidise Ag to AgCl. AgCl forms a soluble complex with ammonia when added in excess.
`PCl_(5) + 2Ag to 2AgCl + PCl_(3)`
`underset("white")(AgCl) + 2NH_(3) to underset("Soluble complex")([Ag(NH_(3))_(2)]Cl)`
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