Oxidation state +1 for phosphorous is found in___________?

A. H3PO3
B. H3PO4
C. H3PO2
D. H2P2O7

¨       H3PO3 (Phosphorous Acid) +3

¨       H3PO4 (phosphoric acid): +5

¨       H3PO2 (hypophosphorous acid): +1

¨       H2P2O7 (pyrophosphoric acid): +5

Submitted by :- Jamil Ahmed