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chapter 4 The World of Metals and Non-metals - Part 4

Why should scratches on painted iron be repaired?

Type: MCQ • Marks: 1
Why should scratches on painted iron be repaired?
Options
A. Scratches make iron luminous
B. Paint makes iron heavier only
C. Exposed iron can rust
D. Rust can never start at scratches
Explanation
A scratch exposes iron to air and moisture, allowing rusting to begin.
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