Question

What is the use of litmus test​

Answer 1

Answer:

The main use of litmus is to test whether a solution is acidic or basic. 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)

Answer 2

Answer:

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When you want to determine the acidity or alkalinity of a liquid or water-soluble gas, the easiest way is to perform a litmus test. The test requires litmus papers, which are narrow strips of paper treated with chemical solutions that are sensitive to pH changes.

The main use of litmus is to test whether a solution is acidic or basic. 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).