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Building Materials

Q1: 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%

D MgO, CaSO4, KMnO2 and FeO 8%

E all the above.

ANS:E - all the above.

Yes, slag is same as blast furnace slag but the meaning of slag is impurities which are in the iron.



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