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Question
Observe the circuit given in the figure.
Boojho set up this circuit for purification of copper. What will be the nature of – (i) plate A (ii) plate B (iii) and the solution.
Explain the process of purification.
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Solution
Following steps can be taken for the purification of copper in the given circuit:
- Plate A made up of pure copper.
- Plate B made up of impure copper.
- Copper Sulphate as the solution.
When electricity is passed through the copper sulphate solution, it dissociates into copper and sulphate ions. These copper ions have a positive charge, hence they get deposited on the negative terminal which is made up of pure copper. This process is known as electroplating.
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