Question

17. The acid base indicator which is extracted from lichens
a. Methyl orange b. Phenolphthalein c. Turmeric paper d. ttmus​

Answer 1

Answer:

Litmus

Litmus is a water-soluble mixture of different dyes extracted from lichens. It is often adsorbed onto filter paper to produce one of the oldest forms of pH indicator, used to test materials for acidity.

Answer 2

Answer:

D. Litmus

Explanation:

Litmus is the acid base indicator extracted from lichens.