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The electrolytes usually used in the ele...

The electrolytes usually used in the electroplating of gold and silver, respectively, are

A

`[Au(CN)_(2)]^(-) and [Ag(CN)_(2)]^(-)`

B

`[Au(CN)_(2)]^(-) and [AgCl_(2)]^(-)`

C

`[Au(OH)_(4)]^(-) and [Ag(OH)_(2)]^(-)`

D

`[Au(NH_(3))_(2)]^(+) and [Ag(CN)_(2)]^(-)`

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