A teacher carries out an investigation into the electrolysis of molten lead(II) bromide. At room temperature, lead(II) bromide is a solid. Fig. 1.1 shows the apparatus used by the teacher.
(a)[2]
Name the apparatus parts labelled L and M. State the material that L and M are made from.
(b)[2]
Describe the appearance of the products formed at L and at M.
(c)[2]
The teacher switches off the heating and leaves the lead(II) bromide to cool. Explain why the lamp goes out.
Worked solution & mark scheme
This 6-mark question has a full step-by-step worked solution and mark scheme. One marking point: “electrodes” …