What would happen if the protective tin coating over an iron bucket is broken in some places ?

Explanation

### Step-by-Step Solution:

1. **Understanding the Coating**: The iron bucket is coated with tin to protect it from corrosion. This process is known as galvanization. The tin acts as a barrier between the iron and the environment.

2. **Oxidation Potentials**: The oxidation potential of tin (Sn) is lower than that of iron (Fe). This means that tin is more resistant to oxidation compared to iron. When the tin coating is intact, it oxidizes preferentially, protecting the underlying iron.

3. **Effect of Damage**: If the tin coating is broken in some places, the exposed areas of iron are no longer protected. The iron is now in direct contact with the atmosphere, which contains moisture and oxygen, both of which are necessary for corrosion to occur.

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