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Question
Copy and complete the following table :
| Anode | Electrolyte | |
| Purification of copper |
Solution
| Anode | Electrolyte | |
| Purification of copper | Impure copper | Solution of copper sulphate and dilute sulphuric acid |
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RELATED QUESTIONS
Give reasons why In the electroplating of an article with silver, the electrolyte sodium argentocyanide solution is preferred over silver nitrate solution.
State one relevant observation for the following:
At the anode when aqueous copper sulphate solution is electrolysed using copper electrodes.
Choose the correct answer from the options given below:
The electrolyte used for electroplating an article with silver is
A. Silver nitrate solution
B. Silver cyanide solution
C. Sodium argentocyanide solution
D. Nickel sulfate solution
State the electrode reaction at the anode during electrolysis of:
Aqueous copper sulphate solution.
Give reason for the following:
The blue colour of aqueous copper sulphate fades when it is electrolysed using platinum electrodes.
The following question relate to the electroplating of an article with silver.
Name the electrode formed by the article which is to be plated.
What ions must be present in a solution used for electroplating a particular metal?
The electrolyte used for electroplating an article with silver is ______.
Draw a labelled diagram to show how iron is electroplated with copper.
Write two applications of electrolysis in which the anode diminishes in mass.
