Answer : The balanced two-half reactions will be,
Oxidation half reaction : [tex]Cd(s)\rightarrow Cd^{2+}(aq)+2e^-[/tex]
Reduction half reaction : [tex]Pd^{2+}(aq)+2e^-\rightarrow Pd(s)[/tex]
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. It is also known as the galvanic cell or electrochemical cell.
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.
The given redox reaction is:
[tex]PdCl_4^{2-}(aq)+Cd(s)\rightarrow Pd(s)+4Cl^-(aq)+Cd^{2+}(aq)[/tex]
The balanced two-half reactions will be,
Oxidation half reaction : [tex]Cd(s)\rightarrow Cd^{2+}(aq)+2e^-[/tex]
Reduction half reaction : [tex]Pd^{2+}(aq)+2e^-\rightarrow Pd(s)[/tex]