Question

Distinguish between carbon reduction and self reduction process

Answer 1

Carbon reduction process. ... Carbon is usually used in the form of coke, or carbon monoxide. Not all metallic oxides can be reduced by carbon or carbon monoxide. Thus, in order to extract metal from its ore the method adopted depends on the reactivity of the metal i.e., its position in the metal activity series.

Self-Reduction Process. The cations of the less electropositive metals like Pb, Hg, Sb and Cu may be reduced without the use of any additional reducing agent. ... For example, in the extraction of mercury, the sulphide ore (cinnabar) is heated in a current of air when the following reactions take place.....hope this helps u..