Chemistry 5070 · O Level · Elements, compounds and mixtures

Elements, compounds and mixtures — practice question

Which three elements are present as diatomic molecules at room temperature?

  • Ahydrogen, oxygen, helium
  • Bnitrogen, chlorine, neon
  • Cnitrogen, oxygen, fluorine
  • Doxygen, chlorine, helium

Worked solution & mark scheme

This 1-mark question has a full step-by-step worked solution and mark scheme.

  • Full mark scheme, point by point
  • Step-by-step worked solution
  • Write your answer & get it marked instantly by AI