OCR A LEVEL CHEMISTRY EXAMINATION -2026
TRANSITION METAL COLOURS
(Inorganic Chemistry – Ligand Field & d–d Transitions)
Qualification: A Level Chemistry (OCR Specification A)
Paper Code: H432/02
Topic Area: Transition Metal Ions & Colour
Date: __________________________
Time: __________________________
Duration: 1 Hour 45 Minutes
Total Marks: 70
INSTRUCTIONS TO CANDIDATES
Answer ALL questions.
Write clearly in black ink; use pencil for diagrams if necessary.
Show all working and reasoning for calculation and explanation questions.
Use correct chemical terminology, including oxidation states and ligand names.
Include balanced equations and state symbols where required.
A Data Sheet is provided.
Use of a scientific calculator is permitted.
, ASSESSMENT FOCUS
Origin of colour in transition metal ions
d–d electronic transitions
Splitting of d orbitals in different ligand fields
Effect of ligands on colour (spectrochemical series)
Absorption of light and complementary colours
Complex ion formation and ligand exchange
CANDIDATE DETAILS
Full Name: ____________________________________________
Candidate Number: _____________________________________
Centre Number: ________________________________________
Signature: ____________________________________________
FOR EXAMINER’S USE ONLY
Question Marks Available Marks Awarded
1
2
3
…
Total 70
TRANSITION METAL COLOURS
(Inorganic Chemistry – Ligand Field & d–d Transitions)
Qualification: A Level Chemistry (OCR Specification A)
Paper Code: H432/02
Topic Area: Transition Metal Ions & Colour
Date: __________________________
Time: __________________________
Duration: 1 Hour 45 Minutes
Total Marks: 70
INSTRUCTIONS TO CANDIDATES
Answer ALL questions.
Write clearly in black ink; use pencil for diagrams if necessary.
Show all working and reasoning for calculation and explanation questions.
Use correct chemical terminology, including oxidation states and ligand names.
Include balanced equations and state symbols where required.
A Data Sheet is provided.
Use of a scientific calculator is permitted.
, ASSESSMENT FOCUS
Origin of colour in transition metal ions
d–d electronic transitions
Splitting of d orbitals in different ligand fields
Effect of ligands on colour (spectrochemical series)
Absorption of light and complementary colours
Complex ion formation and ligand exchange
CANDIDATE DETAILS
Full Name: ____________________________________________
Candidate Number: _____________________________________
Centre Number: ________________________________________
Signature: ____________________________________________
FOR EXAMINER’S USE ONLY
Question Marks Available Marks Awarded
1
2
3
…
Total 70
