AQA · Chemistry · 8462
GCSE Chemistry: Halides
Chemical analysis · AQA GCSE Chemistry (8462), specification point 4.8.3.4. Cards are generated from the exam board's own specification for "Halides", and every card links back to the page it came from. Separate science only. Specification © AQA — used with attribution.
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Which reagent is used to test for halide ions in solution?
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Silver nitrate solution, added in the presence of dilute nitric acid.
In the halide ion test, silver nitrate solution is added in the presence of dilute ? acid.
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nitric
What is observed when silver nitrate is added to a halide ion solution?
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A precipitate forms (silver halide).
What colour precipitate forms when acidified silver nitrate is added to a chloride solution?
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White (silver chloride).
What colour precipitate forms when acidified silver nitrate is added to a bromide solution?
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Cream (silver bromide).
What colour precipitate forms when acidified silver nitrate is added to an iodide solution?
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Yellow (silver iodide).
A cream precipitate forms with acidified silver nitrate. Which halide ion is present?
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Bromide ions (Br⁻) — the precipitate is silver bromide.
A yellow precipitate forms with acidified silver nitrate. Which halide ion is present?
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Iodide ions (I⁻) — the precipitate is silver iodide.
Silver chloride forms a ? precipitate in the halide test.
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white
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