ChemistryNon-metals and their compoundsWAEC
A gas given off by a fermenting palm-wine jar turns lime water milky. The gas is
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Answer: B. carbon(IV) oxide
Fermentation produces carbon(IV) oxide, which forms insoluble calcium trioxocarbonate(IV) with lime water.
An AdmitMe practice question, written for the WAEC syllabus. Not an official past question.