Which salt is most likely to show basic nature in aqueous solution?
Answer and explanation
Correct answer: Sodium carbonate
The governing concept is the hydrolysis of salts in water. Sodium carbonate is formed from a weak acid, carbonic acid, and a strong base, sodium hydroxide. Its carbonate ions react with water and generate hydroxide ions, so the solution becomes basic. Sodium chloride and potassium nitrate come from strong acid–strong base combinations and are nearly neutral, whereas ammonium chloride, from a weak base and strong acid, is acidic. Therefore, option A is correct.
Frequently asked questions
What is the correct answer to this question?
Sodium carbonate
Why is this the correct answer?
The governing concept is the hydrolysis of salts in water. Sodium carbonate is formed from a weak acid, carbonic acid, and a strong base, sodium hydroxide. Its carbonate ions react with water and generate hydroxide ions, so the solution becomes basic. Sodium chloride and potassium nitrate come from strong acid–strong base combinations and are nearly neutral, whereas ammonium chloride, from a weak base and strong acid, is acidic. Therefore, option A is correct.
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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