Question

what is indicator and it's properties

Answer 1

Answer:

Chemical indicator, any substance that gives a visible sign, usually by a colour change, of the presence or absence of a threshold concentration of a chemical species, such as an acid or an alkali in a solution. An example is the substance called methyl yellow, which imparts a yellow colour to an alkaline solution.....

Answer 2

Answer:

indicator is a solution which is use to check the nature of a chemical or object it is made from china rose( gudhal)