The video explains electrolysis, a process of splitting compounds into elements using an electric current. It covers the setup required for electrolysis experiments and the rules for determining which ions are discharged at the electrodes. The video provides examples using copper sulphate and sodium chloride solutions, illustrating how different ions are discharged based on reactivity and presence of halides.

What is the main purpose of electrolysis?

What must be true about the ions in the electrolyte for electrolysis to occur?

How do you determine which ions will be discharged at the cathode?

What happens to copper ions during the electrolysis of copper sulphate?

What is the rule for discharging ions at the anode?

In the electrolysis of sodium chloride, which ions are discharged at the cathode?

What is formed at the anode during the electrolysis of sodium chloride?