Which of the following substances gives a basic solution when dissolved in water?
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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.
Frequently asked questions
What is the correct answer to this question?
\(\mathrm{NaOH}\)
Why is this the correct answer?
\(\mathrm{NaOH}\) 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.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Chemical Substances – Nature and Behaviour. Topic: Acids, Bases, and Salts.
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