Question

from where do we obtain litmus ​

Answer 1

Answer:

Hello❤❇!!

✍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:

litmus is obtained naturally

Explanation:

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