What is the usual pH value of a neutral solution?
Answer and explanation
Correct answer: Seven
The pH scale is based on the concentration of hydrogen ions and is used to compare acidity and basicity. At approximately 25°C, a neutral aqueous solution has balanced hydrogen and hydroxide ion concentrations, so its pH is 7. A value such as 3 is acidic, 10 is basic, and 14 represents a strongly basic end of the usual scale. Therefore, option B, seven, is correct.
Frequently asked questions
What is the correct answer to this question?
Seven
Why is this the correct answer?
The pH scale is based on the concentration of hydrogen ions and is used to compare acidity and basicity. At approximately 25°C, a neutral aqueous solution has balanced hydrogen and hydroxide ion concentrations, so its pH is 7. A value such as 3 is acidic, 10 is basic, and 14 represents a strongly basic end of the usual scale. Therefore, option B, seven, 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.
