Question detail
Which statement would earn credit for Describe 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
MCQ
Type
practice
Style
Topic
Identification of common gases
Question
- A. Using a lighted splint
- B. Using damp litmus paper
- C. Using limewater
- D. Using a glowing splint
Answer
The correct answer is Using limewater. It matches carbon dioxide because the evidence is limewater and the expected result is turns milky.
Explanation
The correct option is Using limewater. The answer stays inside Identification of common gases by linking the observation to the conclusion instead of naming a substance without evidence. Other options are weaker when they confuse gas tests, flame colours, ion-test precipitates, chromatography evidence, or pure-substance/formulation wording.
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.
Related flashcards
Flashcard 1 of 5
Related practice questions
Question 1 of 5
Choose an answer, get feedback, then move sideways through the set.