Home
Class 12
CHEMISTRY
Rusting on the surface of iron involves...

Rusting on the surface of iron involves

A

`Fe(s) to Fe^(2+) (aq.) +2e^(-) ("at anodic site")`

B

`O_(2)(g)+4H^(+) (aq.) +4e^(-) to 2J_(2)O(l)` (at cathodic site)

C

`4Fe^(2+) (aq.) +O_(2) (g)+4H_(2)O (l) to 2Fe_(2)O_(3) (s)+8H^(+)`

D

`Fe_(2) O_(3)+xH_(2)O(l) to Fe_(2)O_(3). xH_(2)O`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Similar Questions

Explore conceptually related problems

Rust is

Rust is

The reddish brown powder on the surface of iron nails exposed to air and miosture is called . . . . . . . . . . . . . .

Rusting of iron is

Rusting of an article made up of iron is called

Rusting of iron is a

Assertion (A) HNO_(3) makes iron passive. Reason (R ) HNO_(3) forms a protective layer of ferric nitrate on the surface of iron.

A solution of CuSO4 was kept in an iron pot. After few days the iron pot was found to have a number of holes in it. Explain the reason in terms of reactivity. Write the equation of the reaction involved.

When a greased iron needle is placed gently on the surface of water at rest, it floats on the surface of water. Why?

Iron does not rust even if zinc coating on its surface is broken but the same is not true when coating is of tin.