Chemistry 0620 · IGCSE · Electrolysis

Electrolysis — practice question

Magnesium is produced through the electrolysis of molten magnesium chloride.
(a(i))[2]

Suggest a non-metal that could be used for the positive electrode, and justify your choice.

(a(ii))[2]

Predict the products formed during the electrolysis of molten magnesium chloride at the positive electrode and at the negative electrode.

(b)[2]

Put the statements A, B, C, D, E and F into the correct sequence to show how crystals of hydrated magnesium chloride are prepared.

(c)[2]

Describe two other properties of copper that differ from those of magnesium.

(d(i))[1]

Which sample, R, S, T or U, has the same ions as both solution Y and solution Z?

(d(ii))[1]

Which sample, R, S, T or U, has different ions from both solution Y and solution Z?

(d(iii))[1]

In which sample, R, S, T or U, were the most transition element ions separated?

Worked solution & mark scheme

This 11-mark question has a full step-by-step worked solution and mark scheme. One marking point: graphite (the non-metal)

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