Assertion : Magnesium oxide is used for brick lining in steel making furnace. Reason : It reacts with acidic impurities through slag formation.
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 (A): Calcium and magnesium oxides are not reduced by carbon. Reason (R ): Calcium and magnesium oxides react with carbon to form their respected carbides.
