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Which statement describes where oxidation and reduction half-reactions occur in an operating electrochemical cell?(1) Oxidation and reduction both occur at the anode
(2) Oxidation and reduction both occur at the cathode
(3) Oxidation occurs at the anode and reduction occurs at the cathode
(4) Oxidation occurs at the cathode and reduction occurs at the anode

Sagot :

Lulu1991idn
The answer is (3), oxidation occurs at the anode and reduction occurs at the cathode. That's because the oxidation reaction can lose electrons and reduction can gain electrons.

Answer : The correct option is, (3) Oxidation occurs at the anode and reduction occurs at the cathode

Explanation :

Electrochemical cell : It is the cell in which the chemical reaction occurs with the production of electric potential difference between the two electrodes.

Or, it is a device which is used for the conversion of the chemical energy produces in a redox reaction into the electrical energy.

In this cell, the oxidation occurs at anode which is a negative electrode and reduction occurs at cathode which is a positive electrode.

Hence, the correct option is, (3) Oxidation occurs at the anode and reduction occurs at the cathode

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