Question

Sulphuric acid is a __________________ acid (mono basic/dibasic).

Answer 1

Basicity

• The amount of replacement hydronium ions$\left({\mathrm{H}}_3{\mathrm{O}}^{+}\right)$ created per molecule of acid is known as its basicity.
• After complete dissociation, dibasic acids produce two hydrogen ions$\left({\mathrm{H}}^{+}\right)$ per molecule of the acid.
• For example - Sulfuric acid$\left({\mathrm{H}}_2{\mathrm{SO}}_4\right)$ is a dibasic acid.

$$\begin{gathered} {\mathrm{H}}_2{\mathrm{SO}}_4\rightleftharpoons {\mathrm{H}}^{+}+{\mathrm{HSO}}_4^{-} \\ {\mathrm{HSO}}_4^{-}\rightleftharpoons {\mathrm{H}}^{+}+{\mathrm{SO}}_4^{2-} \\ \mathrm{\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_} \\ {\mathrm{H}}_2{\mathrm{SO}}_4\rightleftharpoons 2{\mathrm{H}}^{+}+{\mathrm{SO}}_4^{2-} \end{gathered}$$

Sulfuric acid is a dibasic acid.