Who Uses Litmus Paper?

The main use of litmus is to test whether a solution is acidic or basic. Light-blue litmus paper turns red under acidic conditions, and red litmus paper turns blue under basic or alkaline conditions, with the color change occurring over the pH range 4.5–8.3 at 25 °C (77 °F). Neutral litmus paper is purple.

What is a litmus paper and why is it used?

A type of paper that changes colour in response to the acidity of the solution it is dipped in and can thus be used to measure acidity. Litmus paper is a filter paper that has been treated with a lichen-provided natural-soluble dye. ... Litmus is mainly used to assess whether a solution is acidic or basic.

What is an example of litmus paper?

D. Litmus paper is filter paper which has been treated with a natural water-soluble dye obtained from lichens. The resulting piece of paper, called "litmus paper", can be used as a pH indicator. ... Neutral litmus paper turns red under acidic conditions and blue under alkaline conditions.