Question

Name the sources from which litmus solution is obtained. What is the use of this solution?

Answer 1

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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.

Litmus solution is the purple dye which is extracted from a plant "Lichen". It is used as acid-base indicator.

The main use of litmus is to test whether a solution is acidic or basic. Wet litmus paper can also be used to test for water-soluble gases that affect acidity or alkalinity; the gas dissolves in the water and the resulting solution colors the litmus paper.

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