Question

15. Observe the following stages of extraction of a metal from its ore.
Sulphide ore
Reduction Purification
The process that has to be done in the empty space is
A. Electrolysis
B Calcination
C. Roasting
D. Oxidation​

Answer 1

Answers to the questions are given below

Explanation:

• Reduction is the method of extraction of a metal from its ore.
• For example, copper metal is extracted from its ore by the reduction process.
• The question of conversion of copper ore to its metal is given below.
• Cu2S+O2 → 2Cu + SO2
• Calcination is carried out in empty space.
• During calcination, a solid is heated to a high temperature to remove impurities.