Equimolar solutions of the following substances were prepared separately. Which one will record the — Ionic Equilibrium Chemistry Question

💡 Solution & Explanation

$KCl$ and $NaCl$ are neutral salts (SA-SB). $CuSO_4$ is an acidic salt (SA-WB). $Na_2CO_3$ is a salt of a strong base (NaOH) and a weak acid ($H_2CO_3$), so it undergoes anionic hydrolysis to form a basic solution with the highest pH.