In a voltaic cell, where does the reduction take place?

Answer : The reduction reaction takes place at cathode.

Explanation :

Voltaic cell : It is defined as a device which is used for the conversion of the chemical energy produces in a redox reaction into the electrical energy.

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

For example : The redox reaction occurs between the zinc and copper sulfate.

The balanced two-half reactions will be,

Oxidation half reaction (cathode) :

Reduction half reaction (anode) :

Thus the overall reaction will be,

Hence, the reduction reaction takes place at cathode.

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why do the isotopes of a particular element behave differently in nuclear reactions but the same in chemical reactions? chemical reactions involve changes to electrons in an atom; isotopes do not differ in electrons, and so they react the same way during chemical changes.