Lesson 4.8.3.1
4.8.3.1 Flame tests Quiz: AQA Chemistry, Unit 8
20 questions
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Lesson 4.8.3.1, Flame tests: 20 multiple choice questions for the AQA GCSE Chemistry (8462), Unit 8: Chemical analysis, written with Revision Ninja.
Host it live on the board and students join with a game code on their own devices, or revise alone with Free Play. The answers are revealed in the game.
The 20 questions
-
What flame colour do lithium compounds give?
- Yellow
- Lilac
- Green
- Crimson
-
What flame colour do sodium compounds give?
- Yellow
- Crimson
- Lilac
- Green
-
Which metal ion gives a lilac flame?
- Lithium
- Calcium
- Potassium
- Copper
-
Which flame colour is produced by calcium compounds?
- Green
- Yellow
- Lilac
- Orange-red
-
Which ion gives a green flame?
- Calcium
- Sodium
- Copper
- Potassium
-
What is the name of the test that uses flame colours to identify metal ions?
- Precipitation test
- Titration
- Flame test
- Chromatography
-
What can prevent a specific flame colour from being observed in a test?
- Low temperature
- Mixed ions
- Excess oxygen
- Pure substance
-
Which metal ion's flame colour is NOT part of the required knowledge in the spec?
- Copper
- Lithium
- Iron
- Potassium
-
A flame test gives a lilac colour. Which ion is probably present?
- Potassium
- Lithium
- Sodium
- Calcium
-
What flame colour is produced by lithium compounds?
- Crimson flame
- Lilac flame
- Yellow flame
- Green flame
-
A crimson flame is seen when testing a salt. Which metal is most likely?
- Lithium
- Sodium
- Copper
- Potassium
-
A green flame is seen. Which compound is most likely in the sample?
- A copper compound
- A sodium compound
- A calcium compound
- A potassium compound
-
Two flame tests give orange-red and yellow results. Which ions are most likely?
- Copper and lithium
- Calcium and sodium
- Potassium and copper
- Lithium and potassium
-
Why might calcium's flame colour be hidden in a metal ion mixture?
- Turned into a liquid
- Destroyed by heat
- Masked by others
- Absorbed by glass
-
What colour is observed in a flame test for sodium compounds?
- Green
- Crimson
- Lilac
- Yellow
-
A student sees a lilac flame and a yellow flame. Which metal ions does this suggest?
- Potassium and sodium
- Calcium and copper
- Lithium and copper
- Potassium and calcium
-
What happens to flame test colours when testing a mixture of metal ions?
- Colours become brighter
- No change occurs
- All colours disappear
- Some colours masked
-
Which metal ion produces a lilac flame?
- Calcium
- Potassium
- Lithium
- Sodium
-
A pure potassium compound is tested in a flame. Which colour is expected?
- Crimson
- Green
- Lilac
- Orange-red
-
A flame test on an unknown compound gives a crimson flame. Which metal ion is most likely present?
- Sodium ions (Na+)
- Lithium ions (Li+)
- Copper ions (Cu2+)
- Potassium ions (K+)
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