Question

Explain rusting of Iron and the chemical reaction taking place during rusting.​

Answer 1

Answer:

Rusting is an oxidation reaction. The iron reacts with water and oxygen to form hydrated iron(III) oxide, which we see as rust. Iron and steel rust when they come into contact with water and oxygen – both are needed for rusting to occur.

Explanation:

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Answer 2

Answer:

ANSWER

At anode, Fe is oxidised to Fe(II) ions and at cathode oxygen is reduced to water. The overall reaction is

2Fe(s)+O

2

(g)+4H

+

(aq)→2Fe

2+

(aq)+2H

2

O(l)

Fe(II) ions are further oxidised to Fe(III) ions.

4Fe

2+

(aq)+O

2

(g)+4H

+

(aq)→4Fe

3+

(aq)+2H

2

O(l)

Fe(III) ions form an insoluble hydrated oxide which is deposited as red brown material called rust.

2Fe

3+

(aq)+4H

2

O(l)→Fe

2

O

3

H

2

O(s)+6H

+

(aq)