Question

Why is Sulphuric acid so strong?

Answer 1

Strong acids: An acid that completely dissociates into the water, is understood to be a strong acid.

Sulphuric acid $\left({\mathrm{H}}_2{\mathrm{SO}}_4\right)$ is a strong acid because:

• It completely ionizes or dissociates to form${\mathrm{H}}^{+}$ and ${{\mathrm{SO}}_4}^{2-}$when it is dissolved in water.
• In dilute solutions the hydrogen sulfate ions also dissociate to form more hydronium ion $\left({\mathrm{H}}_3{\mathrm{O}}^{+}\right)$and sulfate ions ${{\mathrm{SO}}_4}^{2-}$.