Chapter 15: Electroysis (excl. active electrodes)

Question 1

Define electrolysis.

Answer 1

Electrolysis is the process of using electricity to break down or decompose a compound (usually an ionic compound in the molten state or in aqueous solution)

Question 2

Define electrolyte.

Answer 2

A substance that contains mobile ions to conduct electricity.

Question 3

Define electrode.

Answer 3

A rod or plate that contains mobile electrons for the conduction of electricity.

Question 4

Who is the anode and who is the cathode in electrolysis? Who gets oxidised and who gets reduced?

Answer 4

Anode [o] → electrode connected to the positive terminal

Cathode [r] → electrode connected to the negative terminal