alleryStart learning →Which of these is a natural indicator?
Amethyl orange
Bphenolphthalein
Cuniversal indicator
Dlitmus
Answer & Solution
Correct answer: D. litmus
1. Natural indicators are obtained from plants.
2. **Litmus** (from lichen) and turmeric are natural indicators.
3. Methyl orange and phenolphthalein are synthetic indicators.
_Source: Karnataka SSLC (KSEEB) Class 10 Science, Ch2 'Acids, Bases and Salts', §2.1_
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