1.1. Figure 1 shows the apparatus used to metal plate an iron spoon. The spoon is covered with a thin layer of silver.

Figure 1

Suggest a suitable solid compound that can be dissolved to make the electrolyte.

1.2. Higher Only

Write the half equation to show what happens at the silver rod.

1.3. Explain why the spoon needs to be connected to the negative side of the power supply.

1.4. Suggest one way to increase the rate of electroplating.