Red cabbage juice can be used as what?
Answer and explanation
Correct answer: Natural indicator
Red cabbage juice contains pigments called anthocyanins, whose colour changes in acidic and basic media. Because this visible change can indicate the nature of a solution, the juice is used as a natural acid-base indicator. Thus option A is correct; it is not a metal, a salt itself, or a fuel.
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What is the correct answer to this question?
Natural indicator
Why is this the correct answer?
Red cabbage juice contains pigments called anthocyanins, whose colour changes in acidic and basic media. Because this visible change can indicate the nature of a solution, the juice is used as a natural acid-base indicator. Thus option A is correct; it is not a metal, a salt itself, or a fuel.
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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