Question

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

Answer 1

Cathode is the correct answer #plato

Answer 2

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) :
`Zn(s)\rightarrow Zn^(2+)(aq)+2e^-`

Reduction half reaction (anode) :
`Cu^(2+)(aq)+2e^-\rightarrow Cu(s)`

Thus the overall reaction will be,

`Zn(s)+Cu^(2+)(aq)\rightarrow Zn^(2+)(aq)+Cu(s)`

Hence, the reduction reaction takes place at cathode.