Can `PCl_(5)` act as an oxidising as well as reducing agent?

Explanation

The oxidation state of P in `PCI_(5)`, is +5. Since, P has five electrons in its valence shell. Therefore, it cannot increase its oxidation state beyond +5 by donating electrons, therefore, `PCl_(5)` cannot act as a reducing agent. However, it can decrease its oxidation state from +5 to +3 or some lower value, therefore it can act as an oxidising agent. e.g. `PCI_(5)` oxidises Ag to AgCl, Sn to `SnCl_(4), H_(2),` to HCL.
`overset((0))(2Ag)+overset((+5))(PCI_(5))rarroverset((+1))(2AgCI)+overset((+3))(PCI_(3)`
`overset((0))(Sn)+PCI_(5)rarroverset((+4))(SnCI_(4))+PCI_(3)`
`PCI_(5)+overset((0))(H_(2))rarrPCI_(3)+overset((+1))(2HCI)`
In the above reactions, oxidation number of P decreases from +5 to +3 and that of Ag increases from 0 to +1, Sn from 0 to +4 and H from 0 to +1. Hence, `PCl_(5)` can act only as an oxidising agent.