Iron is painted to _________ .

Options

A. give shiny appearance
B. keep it for long
C. save it from corrosion
D. save it from electric current

Explanation

**Step-by-Step Text Solution:**

1. **Understanding the Question**: The question asks why iron is painted. The primary reason for painting iron is to protect it from various environmental factors.

2. **Identifying the Problem**: Iron is prone to rusting when exposed to moisture and oxygen in the air. This rusting process is known as corrosion, which can lead to the deterioration of the metal.

3. **Chemical Reaction**: When iron reacts with oxygen and water, it forms iron hydroxide (Fe(OH)3), which eventually converts to hydrated iron(III) oxide (Fe2O3·xH2O), commonly known as rust.

4. **Consequences of Rusting**: Rusting weakens the iron structure, making it less useful and potentially dangerous if it is a structural component.

5. **Solution to Prevent Rusting**: To prevent rusting, iron is painted. The paint acts as a barrier between the iron and the environment, reducing the contact with moisture and oxygen.

6. **Additional Benefits of Painting**: Besides preventing rust, painting iron gives it a shiny appearance and can enhance its aesthetic value. It also helps in prolonging the lifespan of the iron object.

7. **Conclusion**: Therefore, iron is painted to protect it from corrosion, give it a shiny appearance, and extend its durability.

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