BRAINCAKESilver Nitrate Test for Halide Ions
The silver nitrate test identifies halide ions (Cl−, Br− and I−) in solution.
Method
1. Put a small volume of the unknown solution in a test tube.
2. Add dilute nitric acid.
3. Add a few drops of silver nitrate solution, AgNO3(aq).
4. Observe the colour of any precipitate.
Silver ions react with halide ions to form an insoluble silver halide precipitate. The general ionic equation is:
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More in Group 7
- Reaction with Water
- Reaction with Alkali
- Example Question - 1
- Example Question - 2
- Example Question - 3
- Colours of Silver Halide Precipitates
- Distinguishing Silver Halides with Ammonia
- Why Nitric Acid is Added First
All 20 lessons in Group 7 · All AQA AS-level Chemistry topics