Chemistry 5070 · O Level · Relative masses of atoms and molecules

Relative masses of atoms and molecules — practice question

A compound has a relative molecular mass of $166$. Which molecular formula could this compound have?

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

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