Chemistry 0620 · IGCSE · Formulae, functional groups and terminology

Formulae, functional groups and terminology — practice question

Why does ethanol belong to the homologous series of alcohols whereas propane does not?

  • AEthanol has two carbon atoms per molecule but propane has three.
  • BEthanol can be made from ethene but propane is obtained from petroleum.
  • CEthanol is a liquid but propane is a gas.
  • DEthanol contains the same functional group as other alcohols but propane does not.

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