Question

What is an indicator? Write the name of an indicator.​

Answer 1

$\huge\bf\underline{\red{A}\green{N}\orange{S}\pink{W}\purple{E}\blue{R}}$

• A pH indicator is a halochromic chemical compound added in small amounts to a solution so the pH of the solution can be determined visually. Hence, a pH indicator is a chemical detector for hydronium ions or hydrogen ions in the Arrhenius model.

Name of an indicator.

$\huge\colorbox {blue}{Thymol blue}$

Answer 2

Answer:

Definition:

Indicators are clues, signs or markers that measure one aspect of a program and show how close a program is to its desired path and outcomes. Indicators are realistic and measurable criteria of project progress. They should be defined before the project starts, and allow us to monitor or evaluate whether a project does what it said it would do

Consider the example of the methyl orange, which is of red coloured in unionized form and yellow coloured in unionized form.