Question detail
What is the test for carbon dioxide using limewater?
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
What is the test for carbon dioxide using limewater?
Answer
A high-scoring answer should explain describe the test for carbon dioxide using limewater. Use method first, observation second, conclusion last: name the relevant test or measurement, state the observation, and then connect the result to Test for carbon dioxide.
Explanation
This is correct because limewater is the evidence expected for carbon dioxide, and turns milky is the result that supports the conclusion. A complete answer should use the approved objective wording, include the relevant evidence, and avoid unsupported identification claims.
Common mistake
Confusing Tests for Gases
Students often confuse the test for carbon dioxide with the test for oxygen, forgetting that carbon dioxide turns limewater milky.
To fix this, remember that carbon dioxide is identified by its reaction with limewater, which turns milky, while oxygen is identified by relighting a glowing splint.
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