Edexcel IAL Chemistry A2 17.18 colours of vanadium oxidation states
Edexcel IAL Chemistry A2 17.18 colours of vanadium oxidation states
Use the colour sequence with the oxidation state: V(V) is yellow, V(IV) is blue, V(III) is green and V(II) is purple or mauve.
How this is tested
- Match V2+, V3+, VO2+ and VO2+ colours to purple, green, blue and yellow.
- Use colour changes to follow stepwise reduction of vanadium(V) to vanadium(II).