The arrangements below shows a set-up to investigate the effect of an electric current on molten lead (II) iodide.

The arrangements below shows a set-up to investigate the effect of an electric current on molten lead (II) iodide.


a) Identify two mistakes in the set-up.
b) State three observations made after correcting the mistakes.
c) What particles are responsible for electrical conductivity?
d) Write the equations for the reactions taking place at the electrodes.
e) Indicate on the diagram direction of flow of electric current.

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a) Used a beaker in strong heating.
No heat.

b) Bulb lights.
Cathode - purple vapor.
Anode – Grey beads.

c) Ions.

d)

e) From the positive terminal to the negative terminal of the battery

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maurice.mutuku answered the question on September 20, 2019 at 05:45

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