rusting

Question 1

Barrier method

Answer 1

Method of rust prevention by coating iron with paint, oil, grease or plastic, so that oxygen/water cannot reach the iron/steel.

Question 2

Galvanisation

Answer 2

Method of rust prevention by coating iron with a layer of zinc.

Question 3

Oxidation

Answer 3

Gain of oxygen or loss of electrons

Question 4

Reduction

Answer 4

Loss of oxygen or gain of electrons

Question 5

Rust

Answer 5

Corrosion of iron in the presence of water and oxygen, called hydrated iron(III) oxide.

Question 6

Sacrificial protection

Answer 6

Method of rust prevention by attaching a block of more reactive metal to the iron where the more reactive metal undergoes oxidation in preference to the iron.

Question 7

Redox

Answer 7

Reaction which involves both reduction and oxidation occurring together