Which of the following steps is not always necessary in the extraction of a metal from its ore?
A)chemical treatment prior to reduction
B)concentration of the ore
C)reduction of the mineral to the free metal
D)refining or purification of the metal

Question

Quizplus · Accepted Answer

Chemical treatment prior to reduction is not always necessary in the extraction of a metal from its ore. Some metals can be extracted through physical processes or direct reduction without the need for prior chemical treatment.

Which of the Following Steps Is Not Always Necessary in the Extraction