Chemistrymedium · Past Paper
Which metal is extracted from its ore by the process of self-reduction?
AIron
BAluminum
CCopper
DSodium
✓ Correct Answer: C — Copper
In the extraction of copper from sulphide ores, the oxide reacts with the remaining sulphide to reduce to metal (self-reduction).
Share this question
More from Chemistry
- Which of the following is a redox reaction?
- Which acid is used to identify the presence of carbonates?
- Which property makes baking soda effective in fire extinguishers?
- Which gas is released during the process of respiration?
- The ability of carbon to form long chains by linking with other carbon atoms is called: