In which condition can a salt solution be basic?
Answer and explanation
Correct answer: When the salt is made from a weak acid and a strong base
The pH of a salt solution depends on the relative strengths of its parent acid and base. A weak acid and a strong base produce a salt whose anion hydrolyses in water and generates hydroxide ions, so the solution becomes basic. Sodium carbonate, formed from weak carbonic acid and strong sodium hydroxide, is an example. Strong acid–strong base salts are generally neutral, while strong acid–weak base salts are acidic.
Frequently asked questions
What is the correct answer to this question?
When the salt is made from a weak acid and a strong base
Why is this the correct answer?
The pH of a salt solution depends on the relative strengths of its parent acid and base. A weak acid and a strong base produce a salt whose anion hydrolyses in water and generates hydroxide ions, so the solution becomes basic. Sodium carbonate, formed from weak carbonic acid and strong sodium hydroxide, is an example. Strong acid–strong base salts are generally neutral, while strong acid–weak base salts are acidic.
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.
Student feedback
Was this question useful?
👍 0 Helpful 👎 0 Not helpful
Yes 0% No 0%
0 responsesStudent Reviews
No published reviews yet.
