Flame Tests

Flame Tests Quiz

Spec 3.4.3 · Oxford AQA IGCSE Chemistry: Quiz

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5 questions, one answer each

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  1. 1. What flame colour does sodium produce?

    • A. Crimson
    • B. Yellow
    • C. Lilac
    • D. Green

  2. 2. Which metal ion produces a lilac flame?

    • A. Lithium
    • B. Calcium
    • C. Potassium
    • D. Barium

  3. 3. Why must the wire loop be cleaned before a flame test?

    • A. To make the flame brighter
    • B. To prevent contamination from a previous sample
    • C. To remove the wire's own colour
    • D. It is not necessary to clean it

  4. 4. A student observes a green flame in a flame test. Which metal ion is most likely present?

    • A. Sodium
    • B. Barium
    • C. Lithium
    • D. Potassium

  5. 5. A sample gives a crimson flame, but a student mistakes it for calcium's red flame. What is the key difference examiners expect?

    • A. Crimson is a deeper, more purple-red than calcium's brighter red
    • B. There is no real difference, both are identical
    • C. Calcium's flame is crimson and lithium's is red
    • D. Crimson only appears with a yellow tinge

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