Multiple choice

Which of the following would result in dissolution of copper from one electrode and deposition of it on the other?

  1. Copper plate connected to the positive terminal, carbon rod connected to the negative terminal, and copper sulphate as the solution

  2. Carbon rod connected to the negative terminal, copper plate connected to the positive terminal, and copper sulphate as the solution

  3. Carbon rod connected to the negative terminal, copper plate connected to the positive terminal and an aqueous solution of sulphuric acid as the solution

  4. Carbon rod connected to the postive terminal of the battery, copper plate connected to the negative terminal of the body, and copper sulphate as the solution

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Only in option (2) will the desired effect be reached.

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