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Slag is a name given for
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- molten iron
- molten sand
- molten alumina
- molten calcium silicate
- molten iron
Correct Option: C
Slag is a partially vitreous by-product of the process of smelting ore, which separates the desired metal fraction from the unwanted fraction. A good example is steelmaking slag: quicklime and magnesite are introduced for refractory protection, neutralizing the alumina and silica separated from the metal, and assist in the removal of sulfur and phosphorus from the steel.