Why do we carry out a colour test?

A color test is carried out to assess the presence or concentration of specific substances or compounds in a sample. It involves adding a reagent that produces a characteristic color change in the presence of the target analyte, allowing for qualitative or quantitative analysis. These tests are commonly used in fields like chemistry, Biology, and environmental science for quick and visual results. Additionally, color tests can help in identifying unknown substances or verifying the purity of a sample.