Chemistry 0620 · IGCSE · Alcohols

Alcohols — practice question

Which equation shows the complete combustion of ethanol correctly?

  • A$\text{C}_2\text{H}_5\text{OH} + 3\text{O}_2 \rightarrow 2\text{CO}_2 + 3\text{H}_2\text{O}$
  • B$2\text{C}_2\text{H}_5\text{OH} + 7\text{O}_2 \rightarrow 4\text{CO}_2 + 6\text{H}_2\text{O}$
  • C$2\text{C}_2\text{H}_5\text{OH} + 5\text{O}_2 \rightarrow 2\text{CO}_2 + 6\text{H}_2\text{O}$
  • D$4\text{C}_2\text{H}_5\text{OH} + 7\text{O}_2 \rightarrow 4\text{CO}_2 + 10\text{H}_2\text{O}$

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