Chemistry
Grade-10
Easy
Question
Which of the given substances do not act as an indicator?
Hint:
An indicator should remain chemically inert and must not degrade in the whole reaction.
The correct answer is:
- An acid-base indicator is usually a dye or any substance that helps to differentiate between the two. There are two types of them: artificial indicators and natural indicators. While the artificial indicators are made in a laboratory, the natural indicators are obtained from natural sources such as plants.
- An indicator should remain chemically inert and must not degrade in the whole reaction.
- China rose, onion and clove can act as indicator as they are themselves inert. But orange is acidic it cannot act as an indicator.
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