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General Principles and Processes of Isolation of Elements
Extraction of Metals – Copper and Iron; Refining
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Concepts tested
- metallurgy of copper and iron
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2020 1 question
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Identify the correct statement from the following:The iron obtained from the blast furnace contains about 4% carbon and many impurities (S, P, Si, Mn) in smaller amounts. This is pig iron, which can be cast into a variety of shapes – correct. (Blister copper's appearance is due to evolution of $SO_2$; Van Arkel method is used for Zr/Ti while Ni is refined by Mond's process; wrought iron is the purest commercial iron.)