When pH changes from three to six, which conclusion is most correct?
Answer and explanation
Correct answer: Acidity decreases but the solution is still acidic
A pH below 7 indicates acidity, so both pH 3 and pH 6 describe acidic solutions. Moving upward from 3 to 6 means the hydrogen-ion concentration decreases and the acidity becomes weaker, but the final value has not reached neutrality at pH 7. Thus the solution remains acidic, making option A the only scientifically correct conclusion.
Frequently asked questions
What is the correct answer to this question?
Acidity decreases but the solution is still acidic
Why is this the correct answer?
A pH below 7 indicates acidity, so both pH 3 and pH 6 describe acidic solutions. Moving upward from 3 to 6 means the hydrogen-ion concentration decreases and the acidity becomes weaker, but the final value has not reached neutrality at pH 7. Thus the solution remains acidic, making option A the only scientifically correct conclusion.
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.
