Question

What is the electrolytic cell made of in electrolysis of Lead Bromide? Why it is chosen?​

Answer 1

$\pink{\fbox{\rm{What\: is\: the\: electrolytic\: cell\: made\: of\: in\: electrolysis\: of\: Lead\: Bromide?}}}$

Inert carbon (graphite) electrodes are dipped into molten salt which has been strongly heated in a crucible. It is difficult to collect the gases at the electrodes! The salts may be very high melting, so sometimes a small amount of another salt impurity is added to lower the melting point.

$\blue{\fbox{\rm{Why\: it\: is\: chosen?}}}$

The electrolyte molten lead(II) bromide PbBr2(l), provides a high concentration of lead(II) ions Pb2+ and bromide ions Br– to carry the current during the electrolysis process. Remember that melting an ionic compound breaks down the strong ionic bonding sufficiently to allow the ions to freely move around and carry the electric current. The electrolysis will only take place when electricity is passed through the molten lead bromide.

Answer 2

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Inert carbon (graphite) electrodes are dipped into molten salt which has been strongly heated in a crucible. It is difficult to collect the gases at the electrodes! The salts may be very high melting, so sometimes a small amount of another salt impurity is added to lower the melting point.