universal indicator
What universal indicator means in Chemistry GCSE, as defined for AQA.
Definitions of universal indicator
Exam boards and our study guides word this term in slightly different ways. Learn the version your board uses.
Check what you remember
Read the wording for your board, then hide it and explain universal indicator in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
A mixture of dyes that gives a colour for each pH, which you compare with a colour chart; it is quick but only gives an approximate value.
A mixture of dyes that changes through a range of colours as pH changes, used to measure the approximate pH of a solution.
Topics that use universal indicator
- The pH scale and neutralisation (AQA GCSE)
Related terms
- Acidic solution
- Alkaline properties and pH
- Alkaline solution
- Ionic equations and state symbols
- Ions in aqueous solution
- Neutralisation
- Neutralisation and ionic equations
- pH scale
Using universal indicator in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
Practise Chemistry questions
Create a free account to answer exam-style questions on this topic and get feedback on your answers.
A week of Premium from your first lesson · Then the free plan continues · No card, no charge