What colour does universal indicator show in a neutral solution?
Answer and explanation
Correct answer: Green
A universal indicator is a mixture of indicators that displays different colours over a range of pH values. A neutral solution has a pH of approximately 7, and the indicator colour associated with this middle point is green. Thus option B is correct. Red generally indicates strong acidity, while blue and violet indicate increasingly basic conditions; therefore those colours are not expected for a neutral solution.
Frequently asked questions
What is the correct answer to this question?
Green
Why is this the correct answer?
A universal indicator is a mixture of indicators that displays different colours over a range of pH values. A neutral solution has a pH of approximately 7, and the indicator colour associated with this middle point is green. Thus option B is correct. Red generally indicates strong acidity, while blue and violet indicate increasingly basic conditions; therefore those colours are not expected for a neutral solution.
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.
