Question detail
Which statement would earn credit for Recall that carbonate ions react with dilute acid to produce carbon dioxide.?
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. Oxygen
- B. Hydrogen
- C. Carbon dioxide
- D. Nitrogen
Answer
The correct answer is Carbon dioxide. It matches carbon dioxide because the evidence is limewater and the expected result is turns milky.
Explanation
The correct option is Carbon dioxide. The answer stays inside Identification of ions by chemical and spectroscopic means 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 Carbonate Reaction
Students often think that carbonate ions react with dilute acid to produce water instead of carbon dioxide.
Remember that the reaction produces carbon dioxide gas, which can be confirmed by bubbling through limewater.
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