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Which statement is true for any electrochemical cell?
(1) Oxidation occurs at the anode, only.(2) Reduction occurs at the anode, only.(3) Oxidation occurs at both the anode and the cathode.(4) Reduction occurs at both the anode and the cathode.


Sagot :

The answer is (1) oxidation occurs at the anode, only. And reduction occurs at the cathode, only. The difference between voltaic cell and electrolytic cell is the flow direction of energy(electric to chemical or chemical to electric).