Answer: Rank in order the strongest to the weakest acid is
>
>
.
Step-by-step explanation:
More readily a substance is able to donate a hydrogen ion more will be its acidic strength. Hence, stronger will be the acid.
More is the electronegativity of atoms attached to the acid more easily it will donate a proton. Hence, more will be its acidic strength.
Chlorine is more electronegative in nature as compared to bromine. So,
is more acidic than
.
Since there is no electronegative group attached to
so it is least acidic than
and
.
Thus, we can conclude that rank in order the strongest to the weakest acid is
>
>
.