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Which of the following substances gives a basic solution when dissolved in water?

Answer and explanation

Correct answer: \(\mathrm{NaOH}\)

\(\mathrm{NaOH}\) dissociates in water to give \(\mathrm{Na^+}\) and \(\mathrm{OH^-}\) ions, so its solution is basic. \(\mathrm{HCl}\) and \(\mathrm{CH_3COOH}\) are acids, while \(\mathrm{NaCl}\) is generally neutral. Exam tip: \(\mathrm{OH^-}\) indicates a base.

Related tags

Acids Bases SaltsBasic SolutionSodium HydroxideHydroxide IonsChemical Classification

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