What is Phosphorus acid?
There are several '''phosphorus acids'''. They are acids that have [[phosphorus]] in them. Three of them are common. *[[Hypophosphorous acid]], phosphorus in [[oxidation state]] of +1, [[salt]]s are called [[hypophosphite]]s, [[reducing agent]] *[[Phosphorous acid]], phosphorus in [[oxidation state]] of +3, salts are called [[phosphite]]s, reducing agent *[[Phosphoric acid]], most common, phosphorus in [[oxidation state]] of +5, salts are called [[phosphate]]s {{disambig}}