Question

2 ores a and b were taken on heating ore a it give CO2 whereas ore b gives SO2? What steps will you take to convert them in metals?

Answer 1

Answer:

Explanation:

i) Ore A is a carbonate ore.

The steps involved in extraction of A are:

(a) Calcination The carbonate ore is heated strongly in the limited supply of air to produce metal oxide.

(b) Reduction to metal The oxide ore is reduced with C (coke).

(ii) Ore B is a sulphide ore.

Following steps are involved in its extraction:

(a) Roasting The sulphide ore is heated strongly in the presence of excess of air to produce metal oxide.

(b) Reduction Oxide of metal B is reduced by carbon to obtain the corresponding metal.