BRAINCAKEExample Question - 2
Question: Describe how acidified silver nitrate solution and ammonia solution can be used to identify chloride, bromide and iodide ions.
First add dilute nitric acid. This removes carbonate or hydroxide ions, which would also form a precipitate with silver ions and give a false result. Hydrochloric acid cannot be used because it contains chloride ions.
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More in Group 7
- Halide Ions as Reducing Agents
- Sodium Chloride with Sulfuric Acid
- Sodium Bromide with Sulfuric Acid
- Sodium Iodide with Sulfuric Acid
- Reaction with Water
- Reaction with Alkali
- Example Question - 1
- Example Question - 3
All 16 lessons in Group 7 · All AQA AS-level Chemistry topics