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

Atoms, molecules and stoichiometry — practice question

The diagram illustrates the skeletal formula of citric acid. What molecular formula does citric acid have?

  • A$\text{C}_6\text{H}_8\text{O}_7$
  • B$\text{C}_6\text{H}_4\text{O}_7$
  • C$\text{C}_8\text{H}_8\text{O}_7$
  • D$\text{C}_{10}\text{H}_8\text{O}_7$

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