Pig iron (charcoal) is manufactured from magnetic ore (Fe3O4)

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Question:Pig iron (charcoal) is manufactured from magnetic ore (Fe3O4)

1.Tetra-calcium alumino-ferrite

2.Tricalcium silicate

3.Tricalcium silicate

4.Dicalcium silicate.

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  1. Pig iron (charcoal) is manufactured from magnetic ore (Fe3O4)
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