Coloured complexes questions

IB Chemistry: Coloured complexes questions

1. Suggest why compounds of copper(l) and compounds of scandium(III) are colourless whilst compounds of copper(II) and iron(III) are coloured.2. The hexahydrated iron(III) ion, [Fe(H2O)6]3+, is yellowish brown in colour. Explain (i) why it is coloured and (ii) why it has a different colour to the iron(III) hexacyanide ion, [Fe(CN)6]3-.3. The thiocyanate ion, SCN- and the hydroxide ion are both monodentate ligands. The...


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