What change in nature is shown when the pH of a solution changes from seven to eleven?
Answer and explanation
Correct answer: Neutral to basic
On the pH scale, a value of 7 represents a neutral solution at ordinary school-level conditions. Values greater than 7 indicate a basic or alkaline solution, and pH 11 is therefore basic. The change from 7 to 11 shows that the solution has changed from neutral to basic. It does not become acidic, because acidic solutions have pH values below 7.
Frequently asked questions
What is the correct answer to this question?
Neutral to basic
Why is this the correct answer?
On the pH scale, a value of 7 represents a neutral solution at ordinary school-level conditions. Values greater than 7 indicate a basic or alkaline solution, and pH 11 is therefore basic. The change from 7 to 11 shows that the solution has changed from neutral to basic. It does not become acidic, because acidic solutions have pH values below 7.
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.
