• # question_answer Of the following acids, the one that is strongest is  [DPMT 2004] A) $HBr{{O}_{4}}$ B) $HOCl$ C) $HN{{O}_{2}}$ D) ${{H}_{3}}P{{O}_{3}}$

Oxidation number of $HBr{{O}_{4}}$ is more than that of $HOCl,\ HN{{O}_{2}}$and ${{H}_{3}}P{{O}_{3}}$ so it is the strongest acid among these.