Chemistry 0620 · IGCSE · Simple molecules and covalent bonds

Simple molecules and covalent bonds — practice question

In which molecule are all of the outer-shell electrons from each atom involved in forming covalent bonds?

  • A$\text{CH}_4$
  • B$\text{Cl}_2$
  • C$\text{H}_2\text{O}$
  • D$\text{NH}_3$

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