Universal indicator

Summary: Instead, you need universal indicator. Universal indicator is a mixture of dyes. It changes colour to show how acidic or alkaline a solution is. Tags: science student-book-7 chemistry Created: 2026-05-21 Last Updated: 2026-05-21

Universal indicator

Instead, you need universal indicator. Universal indicator is a mixture of dyes. It changes colour to show how acidic or alkaline a solution is.

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.