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Edexcel IAL Chemistry 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.

Syllabus
First assessment 2019
Course
Chemistry YCH11
Level
A2

Exam points

  • 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).

17.18—The colours of the oxidation states of vanadium (+5, +4, +3 and +2) in its compounds question 1

[Maximum number: 2]

This question is about transition metals and their compounds.

Vanadium can exist in the oxidation states +2,+3,+4 and +5.

Complete the table to show the colours of the ions that each of these oxidation states has in aqueous solution.

Table for Question 17.18—The colours of the oxidation states of vanadium (+5, +4, +3 and +2) in its compounds question 1 — Edexcel A-Level Chemistry A2
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