Predict whether the lamp will light up in each of the following circuits. Write 'Yes' or 'No' alongside each circuit.

Circuit	Lamp will light up

State one relevant observation for of the following:

At the anode, when molten lead bromide is electrolyzed using graphite electrodes.

State one relevant reason for the following:

• Graphite anode is preferred to platinum in the electrolysis of molten lead bromide.