Chemistry A-Level
alphabetical prefixes
What alphabetical prefixes means in Chemistry A-Level, as defined for AQA.
Definition of alphabetical prefixes
Check what you remember
Read the wording for your board, then hide it and explain alphabetical prefixes in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
Substituents listed as prefixes in alphabetical order, using di, tri and tetra for repeats but ignoring those multipliers when alphabetising.
Topics that use alphabetical prefixes
- Nomenclature (AQA A-Level)
Related terms
- Displayed formula
- General formula
- Homologous series
- IUPAC rules
- lowest locants
- Molecular formula
- difference of CH₂
- longest chain
Using alphabetical prefixes 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.
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