Question

litmus paper / solution is madam from _____ plant extract​

Answer 1

$\huge\underline{\overline{\mid{\bold{\red{\mathcal{Answer}}\mid}}}}$

Litmus Solutions From Experience.

Answer 2

Litmus solution is extracted from lichens. Lichens are plants which belong to the Thallophyta group. To obtain litmus solution, the crushing and grinding of lichens are done. The dyes are then added to neutral water to get the required litmus solution.