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Question
Name the source from which litmus solution is obtained. What is the use of this solution?
Solution
Litmus solution is derived from lichens and serves as an indicator. When removed, it appears bright purple. It turns blue when added to bases but red when introduced to acids.
It is used as an indicator to distinguish between acids and bases.
| Solution | Colour of the litmus solution |
| Acidic | Red |
| Basic | Blue |
| Neutral | No change |
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