Yes, aqueous sulfuric acid solution is a mixture. It is a mixture of water and sulfuric acid. Sulfuric acid is a strong acid that is highly soluble in water. When sulfuric acid is dissolved in water, it dissociates into hydrogen ions (H+) and sulfate ions (SO42-). The water molecules surround the ions and form a stable solution. The properties of the aqueous sulfuric acid solution depend on the concentration of sulfuric acid in the solution.