The First Step in the Purification of a Metal M

question 50

Multiple Choice

The first step in the purification of a metal M is represented by the following figure. To which process does the figure correspond, and which metal is usually purified by this process?

• A) The Mond process, for the purification of Zn
• B) The Mond process, for the purification of Ni
• C) The Hall process, for the purification of Al
• D) The Hall process, for the purification of Cr
• E) The zone refining process, for the purification of Fe

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