Chemistry 9701 · AS & A Level · Atoms, molecules and stoichiometry

Atoms, molecules and stoichiometry — practice question

Aluminium carbide, $\text{Al}_4\text{C}_3$, undergoes a rapid reaction with aqueous sodium hydroxide. This reaction forms $\text{NaAlO}_2$ and a hydrocarbon as the two products. Water molecules also take part as reactants. What is the formula of the hydrocarbon?

  • A$\text{CH}_4$
  • B$\text{C}_2\text{H}_6$
  • C$\text{C}_3\text{H}_8$
  • D$\text{C}_6\text{H}_{12}$

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