Which of the following has the least carbon percentage ?
Correct answer: B. Wrought iron
- A. Low carbon steel
- B. Wrought iron
- C. Mild steel
- D. White cast iron
Explanation
Wrought iron contains very little carbon, generally below about 0.1%, whereas low-carbon and mild steels contain more and white cast iron contains much more. Therefore wrought iron has the least carbon.
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