In the leaching of gold with cyanide, the role of oxygen is BEST described as:
Reducing agent, converting gold ions to metallic gold.
Complexing agent, directly forming a soluble gold complex.
Oxidizing agent, facilitating the formation of a soluble gold complex.
Catalyst, speeding up the dissolution process without being consumed.
Related Questions
Which of these is NOT a step in the process of hydraulic washing?
Roasting
Washing the ore with a stream of water
Using a sloping surface to separate based on density
Removing lighter gangue particles by water
