Why magnesium oxide is used for the linning in stell making furnace?

(a). Why sodium chloride is added during electrolysis of fused anhydrous magnesium chlroride? (b). Why magnesium oxide is used for the lining of steel making furnace?

A: Magnesium oxide is used for the lining in steel making furnace . R: Magnesium oxides acts as flux

Magnesium oxide is a

Explain the following (i) Chalcocite is roasted and not calcined during recovery of copper. (ii) Magnesium oxide is used for lining in steel making furnace

Explain the following (i) Chalcocite is roasted and not calcined during recovery of copper. (ii) Magnesium oxide is used for lining in steel making furnace

Assertion : Magnesium oxide is used for brick lining in steel making furnace. Reason : It reacts with acidic impurities through slag formation.

Magnesium oxide is reduced in the Hansging method using