A salt solution shows pH 10. From which type of acid and base is it more likely formed?
Answer and explanation
Correct answer: Weak acid and strong base
A pH of 10 indicates that the salt solution is basic. In the usual school-level classification, a salt formed from a weak acid and a strong base undergoes hydrolysis of its anion, producing OH⁻ ions and hence a basic solution; sodium acetate is a familiar example. A strong acid–weak base salt is generally acidic, a strong acid–strong base salt is approximately neutral, and option D does not describe salt formation. Therefore B is correct.
Frequently asked questions
What is the correct answer to this question?
Weak acid and strong base
Why is this the correct answer?
A pH of 10 indicates that the salt solution is basic. In the usual school-level classification, a salt formed from a weak acid and a strong base undergoes hydrolysis of its anion, producing OH⁻ ions and hence a basic solution; sodium acetate is a familiar example. A strong acid–weak base salt is generally acidic, a strong acid–strong base salt is approximately neutral, and option D does not describe salt formation. Therefore B 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.
