Question

What is the action of litmus paper on acid?

Answer 1

Part-1 Use of Litmus Paper

Litmus paper is used to determine the acidic or basic nature of the chemical compound.

Part-2 Action of Litmus paper on Acid

1. A blue litmus paper is used for acidic solutions and red litmus paper for basic solutions.
2. When a solution is acidic and litmus paper comes in contact with the solution, the blue litmus paper will turn red and the red litmus paper remains unchanged.
3. This change in color from blue to red indicates that the solution is acidic in nature.