Identify the incorrect statement.

Acidic strength of hydra acids of halogen family increases down the group.Iodide ion is the strongest reducing agent because iodine is weakest oxidising agent.F only exhibits -1 oxidation state as it the most electronegative element and second period element.Acidic strength : HOF>HOCl>HOBr>HOIAs the electronegative decreases from F to I, the polarity of O-H bond also decreases.