Electrolysis

Question 1

Electrical Conductor

Answer 1

A substance that conducts electricity but is not chemically changed during the process.

Question 2

Electrolysis

Answer 2

The breakdown of an ionic compound, molten or in aqueous solution, by the use of electricity

Question 3

Electrodes

Answer 3

Cathode - Negative, reduction occurs

Anode - Positive, oxidation occurs

Question 4

When a molten ionic compound is electrolysed….

Answer 4

• The metal is always formed at the cathode

- The non metal is always formed at the anode

Question 5

Basic rules for electroplating an object an with a metal M

Answer 5

• The object must be made the cathode
• The electrolyte must be a solution of a salt of metal M
• The anode is made of a strip of metal M