Chemistry 0620 · IGCSE · Elements, compounds and mixtures

Elements, compounds and mixtures — practice question

Air is a blend of gases. Which gas occurs in the greatest amount?

  • Aargon
  • Bcarbon dioxide
  • Cnitrogen
  • Doxygen

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