Question

Do aqueous solutions of alkalis contain hydrogen or hydroxide ions?

Answer 1

Hydroxide ions (`OH^-`)

Explanation:

Bases can be described as proton acceptors, acids as proton donators. (Bronsted-Lowery)

An alkali is a base and therefore accepts protons, a proton (`H^+`) is accepted by a hydroxide group (`OH^-`) and water is formed (`H_2O`).