Chemistry 5070 · O Level · Electrolysis

Electrolysis — practice question

Aluminium is produced from aluminium oxide by electrolysis. In this process, cryolite is used. Which statement about cryolite is correct?

  • AIt is the common name for aluminium oxide.
  • BIt is used to dissolve the aluminium oxide.
  • CIt is used to make the positive electrode.
  • DIt is used to make the negative electrode.

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