Redox and Equivalent ConceptHard
Question
Phosphorus has oxidation state of +3 in
Options
A.phosphorus acid
B.orthophosphoric acid
C.metaphosphoric acid
D.pyrophosphoric acid
Solution
Phosphorus acid: H3PO3, oxidation state of P = +3.
Orthophosphoric acid: H3PO4, oxidation state of P = +5.
Metaphosphoric acid: HPO3, oxidation state of P = +5.
Pyrophosphoric acid: H4P2O7, oxidation state of P = +5.
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