5.4.3.4 Electrolysis of Aqueous Solutions Flashcards
1
Q
What happens to ions when an aqueous solution is electrolysed using inert electrodes?
A
- they are discharged
2
Q
What are the discharged ions depend on?
A
- relative reactivity of element involved
3
Q
What is produced at the cathode if the metal is more reactive than hydrogen?
A
- hydrogen
4
Q
What is produced at the anode if the solution contains halide ions?
A
- halogen
5
Q
What is produced at the anode if the solution doesn’t contain halide ions?
A
- oxygen
6
Q
Why does this happen to the ions?
A
- water molecules in the aqueous solution break down
- produces H+ ions and OH- ions that are discharged
