Edexcel A-Level Chemistry A2 17.11 Colour Changes in Transition Metal Ions May Arise As a Result of Changes in I Oxidation Number of the Ion Ii Ligand Iii Questions

Practise Edexcel IAL Chemistry 17.11 by linking colour changes to oxidation state or ligand changes, then classifying the underlying reaction as redox, ligand exchange or neutralisation.

Exam points

Explain colour changes from different oxidation states such as Fe2+ to Fe3+.
Link ligand exchange or hydration changes to a different d-orbital energy gap.
Classify reactions as ligand exchange, redox or neutralisation from observations.

[Maximum number: 2]

The diagram summarises some reactions of copper compounds.

Figure for Question Edexcel A-Level Chemistry A2 17.11 Colour Changes in Transition Metal Ions May Arise As a Result of Changes in I Oxidation Number of the Ion Ii Ligand Iii Questions question 1 — Edexcel A-Level Chemistry A2

T and V are the same type of chemical species.

Suggest an explanation for the change of V into T on shaking.

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Edexcel A-Level Chemistry A2 17.11 Colour Changes in Transition Metal Ions May Arise As a Result of Changes in I Oxidation Number of the Ion Ii Ligand Iii Questions question 1