Last updated on Oct 23, 2026

Halides (AQA GCSE Chemistry): Flashcards

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Halides

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Formation of halide ions

Halogens gain an electron, becoming negatively charged

Reagent to test for halide ions

Aqueous silver nitrate ( $AgNO_3$ )

Precipitate colour for $Cl^-$ with $AgNO_3$

White

Precipitate colour for $Br^-$ with $AgNO_3$

Cream

Precipitate colour for $I^-$ with $AgNO_3$

Yellow

Name of precipitate from $Cl^-$ + $AgNO_3$

Silver chloride ( $AgCl$ )

Name of precipitate from $Br^-$ + $AgNO_3$

Silver bromide ( $AgBr$ )

Name of precipitate from $I^-$ + $AgNO_3$

Silver iodide ( $AgI$ )

What does precipitate colour indicate in halide test?

Which halide ion is present

Equation: $Cl^-$ + $AgNO_3$ →

$AgCl + NO_3^-$

Equation: $Br^-$ + $AgNO_3$ →

$AgBr + NO_3^-$

Equation: $I^-$ + $AgNO_3$ →

$AgI + NO_3^-$

Explore AQA GCSE Chemistry Revision Notes by Topics

Purity, Formulations & Chromatography

Identification of Common Gases

Methods of Identifying Ions

Explore AQA GCSE Chemistry Model Answers by Topics

Purity, Formulations & Chromatography

Identification of Common Gases

Methods of Identifying Ions

Explore AQA GCSE Chemistry Quizzes by Topics

Purity, Formulations & Chromatography

Identification of Common Gases

Methods of Identifying Ions

Explore AQA GCSE Chemistry Exam Questions by Topics

Purity, Formulations & Chromatography

Identification of Common Gases

Methods of Identifying Ions

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