Pick up wrong statement about wrought iron

Option A: Correct. Wrought iron contains very low carbon, generally less than 0.08%, but often described as being in the order of 0 to 0.25%.

Option B: Incorrect. The melting point of pure iron is about 1535°C. Wrought iron, due to impurities such as slag, has a slightly lower melting point, usually around 1500°C or even lower. Hence, this statement is wrong.

Option C: Correct. Wrought iron is very soft, malleable, and ductile because of its low carbon content.

Option D: Partially misleading but acceptable in context. Wrought iron is produced by removing carbon and impurities from pig iron, and the hammering/rolling process helps eliminate slag inclusions and improves its structure. It is not made by adding carbon, but the focus is on refining.

Therefore, the wrong statement about wrought iron is: Option B: It melts at 1535°C.