In which case is the order of acidic strength incorrect?

CHEMISTRY · Single correct · CBSE · Chemistry · Equilibrium · Equilibrium

Problem

In which case is the order of acidic strength incorrect? (1)

\mathrm{HI}>\mathrm{HBr}>\mathrm{HCl}

(2)

\mathrm{HIO}_4>\mathrm{HBrO}_4>\mathrm{HClO}_4

(3)

\mathrm{HClO}_4>\mathrm{HClO}_3>\mathrm{HClO}_2

(4)

\mathrm{HF}>\mathrm{H_2O}>\mathrm{NH_3}