The slag which floats on the surface of the molten iron...

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The slag which floats on the surface of the molten iron generally contains

A. Lime (CaO) 45%

B. Silica (SiO₂) 35%

C. Alumina (Al₂O₃) 12% and MgO, CaSO₄, KMnO₂ and FeO 8%

D. All the above

Answer: Option D

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