DP Chemistry Questionbank
13.2 Coloured complexes
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- 18M.1.hl.TZ2.8: Part of the spectrochemical series is shown for transition metal complexes. I−< Cl− < H2O...
- 18M.1.hl.TZ1.8: Which complex has the greatest d orbital splitting?
- 17N.1.hl.TZ0.10: [CoCl6]3– is orange while [Co(NH3)6]3+ is yellow. Which statement is correct? A. [CoCl6]3–...
- 17M.2.hl.TZ2.2b.iii: Explain why iron forms many different coloured complex ions.
- 17M.2.hl.TZ1.2f: Outline why transition metals form coloured compounds.
- 16N.1.hl.TZ0.10: What is the correct explanation for the colour of [Cu(H2O)6]2+? A. Light is absorbed when an...
- 16N.1.hl.TZ0.9: The oxidation state of cobalt in the complex ion [Co(NH3)5Br]x is +3. Which of the...
- 16M.2.hl.TZ0.4d: In an aqueous solution of vanadium(III) chloride, the vanadium exists as [V (H2O)6]3+, [VCl...
- 16M.1.hl.TZ0.10: Which best explains why transition metal complexes are coloured? A. As electrons return to...
- 15M.1.hl.TZ1.8: Which statements are correct about the complex...
- 15M.1.hl.TZ2.8: Which species cannot act as a ligand? A. \({\text{NH}}_4^ + \) B. ...
- 15M.2.hl.TZ2.8c.iii: Chromium forms the complex ion...
- 15M.2.hl.TZ2.8c.iv: Chromium forms the complex ion...
- 14M.1.hl.TZ1.8: Which ion is colourless? A. ...
- 14M.2.hl.TZ1.5d.iii: Explain why the...
- 14N.1.hl.TZ0.8: Cobalt forms the complex...
- 14N.3.hl.TZ0.2c: (i) Describe why adding excess ammonia to aqueous copper(II) ions causes the shade of the...
- 13N.1.hl.TZ0.8: Which compound is likely to be colourless? A. ...
- 13N.2.hl.TZ0.4d: Substances like EUK-134 are often coloured. Explain why compounds of transition metals absorb...
- 13M.2.hl.TZ2.5d.ii: Explain why the complex [Cr(H2O)3Cl3] is coloured.
- 12N.3.hl.TZ0.A5a: Two octahedral chromium complexes are...
- 12N.2.hl.TZ0.2b: (ii) Cobalt is a transition metal. One common ion of cobalt is...
- 10N.2.hl.TZ0.3e: Explain the origin of colour in transition metal complexes and use your explanation to suggest...
- 10N.3.hl.TZ0.A3b: (i) The energy level diagram showing the electrons in the five 3d orbitals of a chromium atom...
- 09N.1.hl.TZ0.9: Which process is responsible for the colour of a transition metal complex? A. The absorption...
- 09N.3.hl.TZ0.A4: The complex ion...
- 10M.2.hl.TZ1.1c.ii: Explain why the copper solution is coloured.
- 10M.3.hl.TZ1.A3b: When excess ammonia solution is added to a solution of copper(II) sulfate the oxidation number of...
- 10M.2.hl.TZ2.6f.i: State and explain the type of reaction that takes place between \({\text{F}}{{\text{e}}^{3 + }}\)...
- 10M.2.hl.TZ2.6f.ii: Explain why...
- 09M.2.hl.TZ1.8c.ii: Explain why copper(II) compounds in aqueous solution are coloured whereas scandium(III) compounds...
- 09M.2.hl.TZ2.3a.iv: Explain why the complex...
- 11M.1.hl.TZ1.9: Which electron transitions are responsible for the colours of transition metal compounds? A. ...
- 11M.3.hl.TZ1.A4b: Copper(II) sulfate forms a pale blue aqueous solution. When aqueous ammonia is added to this,...
- 11M.1.hl.TZ2.8: Ligands can form dative covalent bonds with metal ions to form complex ions. Which of the...
- 11M.2.hl.TZ2.3c.ii: Explain why the...
- 12M.1.hl.TZ2.8: Which complex is colourless in solution? A. ...
- 12M.2.hl.TZ2.9a: (i) State the full electron configuration of Fe. (ii) State the abbreviated electron...
- 12M.3.hl.TZ2.A4a: Transition metal complexes are coloured because electronic transitions occur within split d...
- 11N.2.hl.TZ0.7e.iii: Explain why the complex...
