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Question
Why indicator does not get affected by salt?
Solution
Indicators do not get affected by salts because salts are neutral in nature. Indicators work only with acidic and basic substances.
For example:
| Indicator | Acidic substance | Basic substance |
| Phenolphthalein | colourless | turns pink |
| Methyl orange | turns red | turns yellow |
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| Test tube | Nature of Solution | Change in colour of red litmus |
| A | Neutral | |
| B | Basic | |
| C | Acidic | |
| D | Neutral |
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