BRAINCAKEReaction with Ammonia Solution
Ammonia can act as both a ligand and a base. In dilute ammonia solution, ammonia acts as a source of OH- ions and transition metal ions react to form coloured precipitates as hydrolysis reactions occur. When an excess of ammonia is added ligand substitution takes place.
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Key terms in this lesson
- ligand substitution
- A reversible reaction in which one ligand in a complex ion is replaced by another.
- octahedral complex
- A complex ion with a co-ordination number of six, in which the ligands are arranged symmetrically around the central metal ion.
More in Redox Reactions
- Heterogenous Catalysts
- Homogenous Catalysts
- Autocatalysis
- Hydration of Metal Ions
- Reaction with Sodium Hydroxide
- Reaction with Sodium Carbonate
- Test for Transition Metal Ions
- Questions
All 21 lessons in Redox Reactions · All OCR A-level Chemistry topics