Chemistry GCSE
–COOH unit
What –COOH unit means in Chemistry GCSE, as defined for AQA.
Definition of –COOH unit
Check what you remember
Read the wording for your board, then hide it and explain –COOH unit in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
The group looked for in a formula, which may be written as COOH, CO₂H or drawn with the carbon double-bonded to oxygen and single-bonded to –OH.
Topics that use –COOH unit
- Carboxylic acids (AQA GCSE)
Related terms
- Acid reactions with carbonates
- Carboxylic acid
- Functional group
- Homologous series
- Trends in physical properties
- Weak acids, ionisation and pH
- -anoic acid
- –COOH
Using –COOH unit 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.
Start free
All Chemistry GCSE termsA week of Premium from your first lesson · Then the free plan continues · No card, no charge