Chemistry A-Level
colour sequence
What colour sequence means in Chemistry A-Level, as defined for AQA.
Definition of colour sequence
Check what you remember
Read the wording for your board, then hide it and explain colour sequence in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
Yellow then blue then green then violet, the colours seen as zinc reduces vanadium species in acidic solution.
Topics that use colour sequence
- Variable oxidation states (A-level only) (AQA A-Level)
Related terms
- 4s and 3d energies
- combining half-equations
- deducing oxidation states
- half-equations in acid
- reduction by zinc
- variable oxidation states
Using colour sequence in the exam
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