Chemistry · Qualitative Analysis
In the laboratory, dilute hydrochloric acid is often used to test for carbonates in a salt because it:
- 1Converts carbonates directly into metal oxides without gas evolution
- 2Precipitates carbonates as insoluble sulphates
- 3Produces carbon dioxide gas with carbonates, which turns lime water milky✓
- 4Produces ammonia gas with carbonates
Correct answer
Produces carbon dioxide gas with carbonates, which turns lime water milky
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