Why P2O5 does not oxidises H2S to Sulphur while H2SO4 does?

or:Why P2O5 does not oxidises H2S to Sulphur while H2SO4 does?or:Phosphorus pentoxide doesn't form a stable octet with hydrogen sulfide because of th

or:Why P2O5 does not oxidises H2S to Sulphur while H2SO4 does?

or:Phosphorus pentoxide doesn't form a stable octet with hydrogen sulfide because of the extra oxygen molecule, thus it does not oxidize.

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