Question

give some example of chemical in indicators ?​

Answer 1

Answer:

An example is the substance called methyl yellow, which imparts a yellow colour to an alkaline solution. If acid is slowly added, the solution remains yellow until all the alkali has been neutralized, whereupon the colour suddenly changes to red.

Answer 2

Answer:

methyl yellow, which imparts a yellow colour to an alkaline solution.

and also litmus paper, methyl blue like examples are there.