F (- ) O F (- ) Cl Cl O ClO - Cl O Cl O Cl O (+ ) XII XII - - - - Br Br O BrO - - - - I - - I O - - I O I O (+ ) . . Oxoacids of halogens: Chlorine forms four types of oxoacids namely hypochlorus acid, chlorous acid, chloric acid and perchloric acid. Bromine and iodine forms the similar acids except halous acid.
However, flurine only forms hypofluorous acid. The oxidizing power oxo acids follows the order: HOX > HXO > HXO > HXO Table . Type HOX HXO HXO HXO X = Cl, Br and I Common Name Hypohalous acid Halous acid Halic acid Perhalic acid Oxidation state + + + + F HOF - - - Cl HOCl HClO HClO HClO Br HOBr HBrO HBrO I HOI HIO HIO