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

Atoms, molecules and stoichiometry — practice question

The diagram illustrates the skeletal formula of phenazine. What is the empirical formula of phenazine?

  • AC$_6$H$_4$N
  • BC$_6$H$_6$N
  • CC$_{12}$H$_8$N$_2$
  • DC$_{12}$H$_{12}$N$_2$

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