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Which of the following substances generally forms an aqueous solution with a pH greater than 7?

Answer and explanation

Correct answer: Sodium hydroxide

Sodium hydroxide is a strong base. It dissolves in water to produce hydroxide ions, \(\mathrm{OH^-}\), so its aqueous solution is basic and has a pH greater than 7. Hydrochloric acid solution is acidic, whereas sodium chloride solution and distilled water are generally neutral.

Related tags

Acids Bases SaltsPh ScaleBasic SolutionSodium HydroxideAqueous Solution

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