Question

Which compund changes colour when added to acidic and basic substances​

Answer 1

Answer:

One is called blue litmus paper and another is called red litmus paper. Litmus liquid and litmus paper are used to detect the acidic or basic nature of a substance. Colour of litmus paper in acid: Blue litmus paper turns into red when dipped in acidic solution.

Answer 2

Explanation:

Litmus is the compound that changes colour when added in acidic or basic substances.