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AQA GCSE · Question 08.1 · Chemical analysis
This question is about chemicals in fireworks. Coloured flames are produced because of the metal ions in the fireworks. What colour flame would sodium ions produce?
This question is about chemicals in fireworks. Coloured flames are produced because of the metal ions in the fireworks. What colour flame would sodium ions produce?
How to approach this question
Recall the characteristic flame test colours for common metal ions, specifically for sodium (Na⁺).
Full Answer
Yellow / Orange
Flame tests are used to identify certain metal ions based on the characteristic colour they produce when heated in a flame. Sodium ions (Na⁺) produce a very strong and distinctive yellow or orange-yellow flame.
Common mistakes
✗ Giving the flame colour for a different metal ion (e.g., lilac for potassium, red for lithium).
Practice the full AQA GCSE Chemistry Foundation Tier Paper 2
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