Chemistry 0620 · IGCSE · Electrolysis

Electrolysis — practice question

Aluminium is produced by the electrolysis of molten aluminium oxide.
(a)[2]

Predict the products formed at the positive electrode and the negative electrode during the electrolysis of molten aluminium oxide.

(b)[3]

Complete these sentences about aluminium uses with words taken from the list. conductivity, corrosion, density, heavy, malleability, reduction, strong, weak

(c)[2]

Put the statements A, B, C, D, E and F in the correct order for making crystals of hydrated aluminium sulfate. The first one has already been given for you.

Worked solution & mark scheme

This 7-mark question has a full step-by-step worked solution and mark scheme. One marking point: positive electrode product: oxygen / O₂

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