Question

The extraction of metals from oxide ores involve :

• A. reduction with carbon
• B. reduction with aluminium
• C. electrolyte reduction
• D. reduction with $CO$

Answer 1

Answer: (A), (B), (C), (D)

The correct options are
A reduction with carbon
B reduction with aluminium
C electrolyte reduction
D reduction with $CO$

During extraction of metals from oxide ores, the reduction of metal ore to crude metal can be carried out by using several methods such as pyrometallurgy, hydrometallurgy and electrometallurgy. Various reducing agents such as carbon, hydrogen, aluminum or other metals can be used. CO also reduces metal ores to crude metals.