Chemistry - Ionic Equilibrium Question with Solution | TestHub

Buffer solutions can be obtained by mixing a weak acid with its salt formed with a strong base or by mixing a weak base with its salt formed with a strong acid. As ${\mathrm{HClO}}_4$ is a strong acid, therefore equimolar mixture of ${\mathrm{HClO}}_4$ and its salt ${\mathrm{KClO}}_4$ is not a buffer solution.