The strength of an oxyacid is defined by the extent to which it dissociates in water (i.e., its ability to form H⁺ ions). ... In the same manner, sulfuric acid, H₂SO₄, with sulfur in its +6 oxidation state, is a stronger acid than sulfurous acid, H₂SO₃, where a +4 oxidation number

Are oxoacids stronger than binary acids?

A binary acid 's strength depends on the H-X bond 's strength; the weaker the bond, the stronger the acid. ... Binary acids are one of two classes of acids; the second are oxoacids (or oxyacids), which consist of hydrogen, oxygen, and another element.

Why Oxyacids of chlorine are stronger than bromine?

Example: Amongst perhalic acids, perchloric acid has high acidic quality. Since chlorine is more electro-negative than bromine or iodine, the shared electron pair lies moderately closer to chlorine in a Cl-O bond than bromine in a Br-O bond or iodine in an I-O bond.