Question

explain brief note on indicators.​

Answer 1

Answer:

A substance that can be added to the reaction mixture to indicate the equivalence point of the titration. Colored indicators are often used to measure pH. These indicators are a different color in a basic environment than in an acidic environment.

Answer 2

Answer:

A substance that can be added to the reaction mixture to indicate the equivalence point of the titration. Colored indicators are often used to measure pH. These indicators are a different color in a basic environment than in an acidic environment.

Explanation:

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.