Which of the following is/ are correctly matched?

Cooper-Bessemer converter, Iron-blast furnace and Chromium-aluminothermic process are correctly matched.

The copper sulphide ore is heated in the air in the Bessemer's converter until a portion is transformed into copper oxide. After that, the unaltered sulphide interacts with the heated copper oxide in the absence of air.

Blast furnaces are used to treat lead, copper, and other metals as well as to create pig iron from iron ore for use in the production of steel. The circulation of air under pressure maintains rapid burning.

​ A steel cylindrical container lined with a basic or neutral refractory is often used for the batch aluminothermic process. The lining might be made of rammed MgO with an organic binder or alumina made from the process slag.

​Hence, option A, B and C are correct.