The common application of indicators is the detection of end points of titrations. The colour of an indicator alters when the acidity or the oxidizing strength of the solution, or the concentration of a certain chemical species, reaches a critical range of values.

How are indicators used in everyday life?

Everyday uses of indicators include:

Testing the acidity or basicity of soils, as some plants grow best in slightly acidic soils (such as azaleas and pineapples) while others grow best in slightly basic soils (such as violets):

What are 2 uses of indicators?

found in Gault (2010), who outlines four ways that indicators are used for policy purposes: monitoring, benchmarking, evaluating, and “foresighting.”