Question

short answer type question :-
a) state whether rusting of iron is a physical or chemical change. how can you prevent rusting of iron ?​

Answer 1

Answer:

Iron combines with oxygen and both form iron dioxide and these cannot be separated again

Explanation:

this is the chemical change

Answer 2

Answer:

rusting of iron is a chemical change.

it can be prevented by-

1. painting the surface.

2. avoid contact with water or moisture

3. oil the surface properly.

4. galvanisation- Galvanisation is the process of applying a protective zinc coating to iron, to prevent rusting.