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Question

In the refining of impure copper metal by the process of electrolysis, the mass of which electrode increases? 

OR

In the electroplating of gold over silver, what is used as electrolyte?

WBBSE Class X Physical Science Electrolysis 01 Mark 2023

Answer

In the refining of impure copper metal by the process of electrolysis, the mass of the cathode increases.

OR

In the electroplating of gold over silver, potassium gold cyanide (KAu(CN)2) is commonly used as the electrolyte.

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