If a solution does not change the colour of either red or blue litmus paper, what is the most likely conclusion?
Answer and explanation
Correct answer: The solution may be neutral
The governing concept is the litmus test for acidic and basic solutions. An acid changes blue litmus to red, while a base changes red litmus to blue. If neither red nor blue litmus changes, the solution is most likely neutral, so option C is correct. The result is not evidence of strong acidity or basicity, and a solution cannot be concluded to be a gas from this test.
Frequently asked questions
What is the correct answer to this question?
The solution may be neutral
Why is this the correct answer?
The governing concept is the litmus test for acidic and basic solutions. An acid changes blue litmus to red, while a base changes red litmus to blue. If neither red nor blue litmus changes, the solution is most likely neutral, so option C is correct. The result is not evidence of strong acidity or basicity, and a solution cannot be concluded to be a gas from this test.
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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