Question

Definition (produces hydroxyl ions on dissolution in water)

Al(OH)₃ 🡪

Answer 1

• Bases produce hydroxide $\left({\mathrm{OH}}^{-}\right)$ ions when dissolved in an aqueous solution
• When Aluminium hydroxide is dissolved in water, it produces Aluminium ions along with hydroxide ions.
• The chemical equation for the given reaction is as follows:

$\underset{\mathrm{aluminium}\mathrm{hydroxide}}{\mathrm{Al}{\left(\mathrm{OH}\right)}_3\left(\mathrm{aq}\right)}\to \underset{\mathrm{aluminium}}{{\mathrm{Al}}^{3+}\left(\mathrm{aq}\right)}+\underset{\mathrm{hydroxide}}{3{\mathrm{OH}}^{-}\left(\mathrm{aq}\right)}$

• The charges on an aluminum ion is $(+3)$and that of a hydroxide ion is $(-1)$.