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Standard XII
Chemistry
Electrometallurgy
Question

The process by which impure metals are purified electrolytically is called as ___________.
  1. electrorefining
  2. none of these
  3. electroplating
  4. both

A
electrorefining
B
none of these
C
both
D
electroplating
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Solution
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Electrorefining it consists of oxidizing of impurities in a high temperature liquid bath. Electrolysis is the dissolving of metal from one electrode of an electrolytic cell and its deposition in a pure form onto the other electrode.

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