2 questions · 4 marks · ≈ 4 min
Which row identifies the product at each electrode during the electrolysis of molten potassium bromide using inert electrodes?
| anode | cathode | |
|---|---|---|
| A | bromide ions | potassium ions |
| B | bromine | potassium |
| C | potassium | bromine |
| D | potassium ions | bromide ions |
Choose your answer
Fig. 4.1 shows the electrolysis of concentrated aqueous sodium chloride using inert electrodes.
State the name of the positive electrode.
Identify the gases produced at the electrodes.
positive electrode: ..................
negative electrode: ..................