Do basic solutions also have H⁺(aq) ions? If yes, then why are these basic?
Yes, basic solutions also have H⁺(aq) ions. The text includes a question regarding the effect of the concentration of H⁺(aq) ions on the nature of the solution, which implies that H⁺ ions are present in all solutions and their concentration determines the nature.
These solutions are basic because bases generate hydroxide (OH⁻) ions in water. The text states that "all bases generate OH⁻(aq)". The basic nature is due to the presence of these hydroxide ions, which react with H⁺(aq) during neutralisation to form water (H⁺(aq) + OH⁻(aq) → H₂O(l)).
Explanation
The provided context does not explicitly state that basic solutions contain H⁺ ions, but it lists a question asking about the effect of H⁺ ion concentration on the nature of the solution, which implies their presence. The context explicitly states that bases generate hydroxide (OH⁻) ions in water, which explains why they are basic. The neutralisation reaction provided (H⁺ + OH⁻ → H₂O) further illustrates the interaction between the ions found in acidic and basic solutions.