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Question
The slag which floats on the surface of the molten iron generally contains
Options:
A .  All listed here
B .  Alumina (Al2O3) 12% and MgO, CaSO4, KMnO2 and FeO 8%
C .  Lime (CaO) 45%
D .  Silica (SiO2) 35%
Answer: Option A

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