Types of salts

These are of four types

I. Salts derived from strong acid and strong base. For example : NaCl, $\mathrm{Na_2SO_4}$, $\mathrm{NaNO_3}$, KCl, $\mathrm{KNO_3}$.

II. Salts derived from strong acids and weak bases. For example : $\mathrm{NH_4Cl}$, $\mathrm{CuSO_4}$, $\mathrm{NH_4NO_3}$, $\mathrm{CuCl_2}$.

III. Salts derived from weak acids and strong bases. For example : $\mathrm{CH_3COONa}$, KCN, $\mathrm{Na_2CO_3}$. …