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Question

In the circuit given in the above figure, Boojho observed that copper is deposited on the electrode connected to the negative terminal of the battery. Paheli tried to repeat the same experiment. But she could find only one copper plate. Therefore she took a carbon rod as negative electrode. Will copper be still deposited on the carbon rod? Explain.

Solution
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Yes, copper from the copper sulphate solution will be deposited on the carbon rod. Copper from the copper plate will be dissolved into the copper sulphate solution for electroplating.

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Similar Questions
Q1
In the circuit given in the above figure, Boojho observed that copper is deposited on the electrode connected to the negative terminal of the battery. Paheli tried to repeat the same experiment. But she could find only one copper plate. Therefore she took a carbon rod as negative electrode. Will copper be still deposited on the carbon rod? Explain.

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Q2

Assertion: Upal observed that copper is deposited on the negative electrode connected to the terminal of the battery. Kavya performed the same experiment but she replaced the copper electrode with a carbon electrode and still observed copper is deposited over carbon rod.

Reason: Copper sulphate solution dissociates into copper and sulphate ions when electricity is passed through dilute copper sulphate solution and this free copper ions deposit on the carbon rod.


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Q3
Copper deposition takes place on the electrode connected to the battery terminal during the electroplating of copper electrodes.
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Q4
When electric current is passed through copper sulphate solution using two copper plates, free copper gets deposited on the electrode connected to the negative terminal of the battery. If we replace the copper plate connected to the negative terminal of the battery by a carbon rod, then

जब कॉपर सल्फेट विलयन में कॉपर की दो प्लेटों के उपयोग से विद्युत धारा गुजारी जाती है, तब स्वतंत्र कॉपर (ताँबा) बैटरी के ऋणात्मक टर्मिनल से संयोजित इलेक्ट्रॉड पर निक्षेपित हो जाता है। यदि हम बैटरी के ऋणात्मक टर्मिनल से संयोजित कॉपर की प्लेट को एक कार्बन छड़ से प्रतिस्थापित करते हैं, तब
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Q5

A beaker contains an acidified copper sulphate solution. A copper plate and a carbon rod are kept in this copper sulphate solution. The copper plate is connected to the positive terminal of a battery whereas the carbon rod is connected to the negative terminal of the battery. What will you observe when an electric current is passed through this set-up for a considerable time?

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