General Science • ChemistryMedium
Which gas is produced when calcium carbide reacts vigorously with water, historically used in miners' lamps?
A. Ethene
B. Acetylene✓ Correct Answer
C. Methane
D. Propane
💡 Solution & Explanation
The chemical reaction between calcium carbide and water produces ethyne, commonly known as acetylene gas, alongside calcium hydroxide. Other hydrocarbons like ethene, methane, or propane are generated through entirely different petrochemical pathways. Acetylene burns with a luminous flame, making it historically valuable for portable lighting. A related industrial application of acetylene is oxy-acetylene welding used for cutting and joining metals.
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