Question detail
Why is it important for the glowing splint to be glowing before testing for oxygen?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
Question
Type
exam_style
Style
Topic
Identification of common gases
Question
Why is it important for the glowing splint to be glowing before testing for oxygen?
Answer
A high-scoring answer should explain recall that oxygen relights a glowing splint. Use evidence before identification: name the relevant test or measurement, state the observation, and then connect the result to Test for oxygen.
Explanation
The important distinction is that oxygen gas must be identified from glowing splint; answers that swap in a different test or result do not match Test for oxygen. A complete answer should use the approved objective wording, include the relevant evidence, and avoid unsupported identification claims.
Common mistake
Confusing Oxygen and Hydrogen Tests
Students often confuse the tests for oxygen and hydrogen, stating that hydrogen relights a glowing splint instead of oxygen.
Correct this by using the approved Test for oxygen context: Recall that oxygen relights a glowing splint. Name the correct test or chemistry idea, state the observation accurately, and then give the conclusion supported by that evidence. Do not swap gas tests, flame tests, cation tests, anion tests, chromatography terms, pure substances, and formulations.
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