Chemistry 0620 · IGCSE · Fuels

Fuels — practice question

Which substance does not use oxygen to release heat energy?

  • Acoal
  • Bhydrogen
  • Cnatural gas
  • Duranium

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