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Question
241(d). Define the term indicator.
241(d). Define the term indicator.
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Solution
- A substance that changes color in an acidic or basic medium, is termed an indicator.
- Indicators show different colors in different mediums.
- Litmus is an indicator, it changes from blue to red in acid and changes from red to blue in base.
- Examples of indicators are litmus, phenolphthalein, red cabbage, etc.
- A substance that changes color in an acidic or basic medium, is termed an indicator.
- Indicators show different colors in different mediums.
- Litmus is an indicator, it changes from blue to red in acid and changes from red to blue in base.
- Examples of indicators are litmus, phenolphthalein, red cabbage, etc.
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