Chemistry 0620 · IGCSE · Formulae

Formulae — practice question

An analysis shows that a compound contains $85.7\%$ carbon and $14.3\%$ hydrogen. What empirical formula does it have?

  • A$\text{CH}$
  • B$\text{CH}_2$
  • C$\text{C}_2\text{H}_4$
  • D$\text{C}_6\text{H}$

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