In the circuit given as Fig. 14.7, 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 your answer.
When Boojho performed the experiment of electroplating using two copper plates, copper ions from the positive plate get released into the copper sulphate solution. This copper ions then get attracted to the negative plate or cathode and gets deposited on the copper rod.
When Paheli performed the same experiment using a copper plate and a carbon rod, still carbon rod act as a negative plate or cathode and positive copper ions released in the solution will still get attracted to the carbon rod and will be deposited on them.
Yes, copper will still be deposited on the carbon rod.