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Which of the following is the correct reaction at anode?

(a) Zn→Zn^+2 + 2e^–

(b) Zn→Zn^+ + e^–

(c) Cu^+2 + 2e^– → Cu

(d) Cu^++ e^– → Cu

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Right answer is (a) Zn→Zn^+2 + 2e^–

For explanation: The reaction at anode can be given by Zn→Zn^+2 + 2e^–. The reaction at cathode Cu^+2 + 2e^– → Cu.

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