Which statement about indicators is the most correct?
Answer and explanation
Correct answer: Indicators can show a colour or smell change in acids and bases
The governing concept is that indicators are substances used to test the acidic or basic nature of a medium. Litmus and several other indicators show colour changes, while olfactory indicators show changes in smell. Thus option A gives the most complete correct statement. Indicators do not identify only metals, neutralise every solution, or cause a gas-to-solid conversion, so B, C, and D are false.
Frequently asked questions
What is the correct answer to this question?
Indicators can show a colour or smell change in acids and bases
Why is this the correct answer?
The governing concept is that indicators are substances used to test the acidic or basic nature of a medium. Litmus and several other indicators show colour changes, while olfactory indicators show changes in smell. Thus option A gives the most complete correct statement. Indicators do not identify only metals, neutralise every solution, or cause a gas-to-solid conversion, so B, C, and D are false.
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.
