A solution with pH less than which value is considered acidic?
Answer and explanation
Correct answer: Seven
The governing concept is the pH scale, which indicates the hydrogen-ion concentration of an aqueous solution. At ordinary school-level conditions, pH 7 is neutral; values below 7 indicate acidic solutions, while values above 7 indicate basic solutions. Therefore option A, seven, is correct. Ten and fourteen are alkaline-side values, and zero is an acidic pH value rather than the boundary asked for.
Frequently asked questions
What is the correct answer to this question?
Seven
Why is this the correct answer?
The governing concept is the pH scale, which indicates the hydrogen-ion concentration of an aqueous solution. At ordinary school-level conditions, pH 7 is neutral; values below 7 indicate acidic solutions, while values above 7 indicate basic solutions. Therefore option A, seven, is correct. Ten and fourteen are alkaline-side values, and zero is an acidic pH value rather than the boundary asked for.
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.
