Question

write the reaction of oxidation of iron at cathode ​

Answer 1

Answer:

Well oxidation occurs at the anode.....

Explanation:

And so....

F

e

(

s

)

→

F

e

2

+

+

2

e

−(

i)

is the anodic reaction...

whereas at the cathode, reduction of dioxygen occurs...

O

2

(

g

)

+

2

H

2

O

(

l

)

+

4

e

−

→

4

H

O

−

(

i

i

)

And we take

2

×

(

i

)

+

(

i

i

)

to get....

2

F

e

(

s

)

+

O

2

(

g

)

+

2

H

2

O

(

l

)

+

4

e

−

→

2

F

e

2

+

+

4

H

O

−

+

4

e

−

2

F

e

(

s

)

+

O

2

(

g

)

+

2

H

2

O

(

l

)

→

2

F

e

2

+

+

4

H

O

−

Iron has a particularly rich redox chemistry, and much effort is made to prevent the oxidation of iron and steel....

Answer 2

Answer

In the corrosion process, iron metal acts as the anode in a galvanic cell and is oxidized to Fe2+; oxygen is reduced to water at the cathode. The relevant reactions are as follows: at cathode: O2(g)+4H+(aq)+4e−→2H2O(l)E°=1.23V.

Hope it helps u