Electrochemistry

1

Which of the following statements is true?

2

Which of the following statements is false?

3

In the electrolysis of molten lead(II) bromide using graphite electrodes:

4

In the electrolysis of molten aluminium oxide, the electrodes are made from:

5

The ore from which aluminium oxide is obtained is called

6

Which of the following half equations occurs at the anode in the electrolysis of aluminium oxide?

7

Which of the following statements summarises the observations during the electrolysis of molten lead(II) bromide using graphite electrodes?

8

Which of the following statements about electrolysis is incorrect?