JAMB - Chemistry (2020 - No. 11)
When water drops are added to calcium carbide in a container and the gas produced is passed through a jet and lighted, the resultant flame is called an?
Oxyethene
Oxyhydrocarbon flame
Oxyacetylene flame
Oxymethane flame
Vysvětlení
The reaction of calcium carbide with water, producing acetylene and calcium hydroxide, was discovered by Friedrich Wöhler in 1862. This reaction was the basis of the industrial manufacture of acetylene, and is the major industrial use of calcium carbide.