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Can PCl(4) acts as an oxidising as well ...

Can `PCl_(4)` acts as an oxidising as well as a reducing agent? Justify.

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Oxidation state of P in `PCl_(5)` is `+5`. Since P has five valence electrons in its valence shell, therefore, it cannot increase its oxidation state beyond `+5` by donating its electrons therefore `PCl_(5)` cannot act as a reducing agent. However, it can decrease its oxidation number from `+5` to `+3` or some lower value, therefore `PCl_(5)` acts as an oxidising agent. For example, it oxidises Ag to AgCl.
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