Chemistry - Ionic Equilibrium Question with Solution | TestHub

$\mathrm{HCl}$ is a stronger acid than $\mathrm{HF}$ because fluorine is more electronegative than chlorine. Hence, it does not lose ${\mathrm{H}}^{+}$ easily. Caution $HF$ is a weak acid because the bond between Hydrogen and Fluorine is so short. It is more difficult for the bond to be broken, so it will not completely dissociate in water.