A solution has pH 7. What can be said about its acidic and basic effects?
Answer and explanation
Correct answer: Both effects are nearly balanced
For an aqueous solution, pH 7 represents neutrality under ordinary school-level conditions. At this point, the acidic effect associated with hydrogen ions and the basic effect associated with hydroxide ions are considered balanced. Hence option C is correct. Option A would describe an acidic solution with pH below 7, and option B would describe a basic solution with pH above 7. A pH value does not mean that water is absent, so option D is incorrect.
Frequently asked questions
What is the correct answer to this question?
Both effects are nearly balanced
Why is this the correct answer?
For an aqueous solution, pH 7 represents neutrality under ordinary school-level conditions. At this point, the acidic effect associated with hydrogen ions and the basic effect associated with hydroxide ions are considered balanced. Hence option C is correct. Option A would describe an acidic solution with pH below 7, and option B would describe a basic solution with pH above 7. A pH value does not mean that water is absent, so option D is incorrect.
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.
