Indicator (Chemistry)

Summary: You can use an indicator to find out whether a solution is acidic or alkaline. An indicator contains a dye (colour). The dye turns a different colour in acidic and alkaline solutions. Tags: science student-book-7 chemistry Created: 2026-05-21 Last Updated: 2026-05-21

Indicator (Chemistry)

You can use an indicator to find out whether a solution is acidic or alkaline. An indicator contains a dye (colour). The dye turns a different colour in acidic and alkaline solutions.

Source

This concept is from the [Science Student Book 7](Science Student Book 7/Chemistry/Acids and Alkalis/4.2 Indicators and pH.md), Chemistry section.