The strengths of oxoacids is based on the number of oxygens or the electronegativity of the nonmetal in the oxoacid. An oxoacid is considered strong when there are at least 2 or more O than H.
HClO3 HClO4 HClO HClO2
These oxoacids given have different number of oxygens and the same nonmetal. We will rank them based on the number of oxygens and hydrogens in the oxoacid.
Rank the oxoacids of chlorine according to strength.
HClO3, HClO2, HClO, HClO4