Which salt solution generally shows basic nature in water?
Answer and explanation
Correct answer: Sodium carbonate
The governing concept is salt hydrolysis. Sodium carbonate is formed from sodium hydroxide, a strong base, and carbonic acid, a weak acid. In water, the carbonate ion reacts partly with water and produces hydroxide ions, so the solution becomes basic. Sodium chloride and potassium nitrate are generally neutral because they come from strong acids and strong bases. Ammonium chloride is acidic because ammonium ions hydrolyse to produce hydrogen ions.
Frequently asked questions
What is the correct answer to this question?
Sodium carbonate
Why is this the correct answer?
The governing concept is salt hydrolysis. Sodium carbonate is formed from sodium hydroxide, a strong base, and carbonic acid, a weak acid. In water, the carbonate ion reacts partly with water and produces hydroxide ions, so the solution becomes basic. Sodium chloride and potassium nitrate are generally neutral because they come from strong acids and strong bases. Ammonium chloride is acidic because ammonium ions hydrolyse to produce hydrogen ions.
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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