Question detail
A student is testing flame test. Which choice keeps the observation and conclusion correctly linked?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Identification of ions by chemical and spectroscopic means
Question
- A. Green
- B. Crimson
- C. Lilac
- D. Orange-red
Answer
The correct answer is Green. It matches flame test because the evidence is flame colour and the expected result is metal ion identity.
Explanation
The correct option is Green. The important distinction is that flame test must be identified from flame colour; answers that swap in a different test or result do not match Flame tests. Other options are weaker when they confuse gas tests, flame colours, ion-test precipitates, chromatography evidence, or pure-substance/formulation wording.
Common mistake
Common Mistake in Flame Tests
Students often confuse the flame color of potassium ions with that of sodium ions, thinking both produce a yellow flame.
Remember that potassium ions produce a lilac flame, while sodium ions produce a yellow flame. Use mnemonic devices or color charts to help differentiate between them.
Related flashcards
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Related practice questions
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