What effect does an acidic solution have on blue litmus paper?
Answer and explanation
Correct answer: Blue litmus turns red
The governing concept is the indicator test for acids and bases. An acidic solution contains hydrogen ions in water and changes blue litmus to red. Therefore, option A is correct. Option B describes the usual action of a base on red litmus, while options C and D do not represent the standard litmus response to an acid.
Frequently asked questions
What is the correct answer to this question?
Blue litmus turns red
Why is this the correct answer?
The governing concept is the indicator test for acids and bases. An acidic solution contains hydrogen ions in water and changes blue litmus to red. Therefore, option A is correct. Option B describes the usual action of a base on red litmus, while options C and D do not represent the standard litmus response to an acid.
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.
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