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in The p Block Elements by (33.4k points)
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Can PCl3 act as an oxidising as well as a reducing agent? Justify.

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This is because in PCl3 phosphorus is in the intermediate oxidising state of -3.

1. As reducing agent : The following reactions support the reducing behaviour of PCl3.

  • PCl3 + SO2Cl2 → PCl5 + SO2
  • PCl3 + SO3 → POCl3+ SO2

 2. As an oxidising agent : It oxidises metals to their respective chlorides.

  • 12Ag + 4PCl3 → 12AgCl + P4
  • 6Na + PCl3 → 3NaCl + Na3

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