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The process of purification of an impure metal is like: 

A. electroplating a metal on the same type of metal 

B. electroplating a metal on another type of metal 

C. producing a chemical compound by electrolysis 

D. decomposing a chemical compound by electrolysis.

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A. electroplating a metal on the same type of metal 

The process of purification of an impure metal is like electroplating a metal on the same type of metal. The pure metal is removed and deposited on the pure metal.

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