Define electrochemical series. Give any 3 significances
Define electrochemical series. Give any 3 significances
Electrochemical series is the arrangement of elements in order of their decreasing reduction potential from top to bottom. The arrangement of elements in increasing order of electrode potential E0 is known as electrochemical series. As per IUPAC rule, The series is made on the basis of standard reduction potential which is measured using standard hydrogen electrode.
1.Metal A which lies low in the activity series accepts electrons most readily
and thus Au which lies low in the series is inert metal .
2. Metal B which is in middle of series is Hydrogen has zero electrode potential or reduction potential.
3. Metal C ( potassium) which is on top of the series has highest reduction potential and thus can not be reduced by any other metal.
Electrochemical series are used:
- To predict relative reducing agent or oxidizing agent. More negative E0 shows high tendency to loose electron and so are stronger reducing agent and vice-versa.
- To calculate the difference between the reduction potential of cathode and anode that is emf of the cell.
- To predict the feasibility of the reaction i.e., whether a redox reaction can occur or not.
- To predict whether a metal can displace other metal or not.
Electrochemical series is the arrangement of elements in order of their decreasing reduction potential from top to bottom. The arrangement of elements in increasing order of electrode potential E0 is known as electrochemical series. As per IUPAC rule, The series is made on the basis of standard reduction potential which is measured using standard hydrogen electrode.
1.Metal A which lies low in the activity series accepts electrons most readily
and thus Au which lies low in the series is inert metal .
2. Metal B which is in middle of series is Hydrogen has zero electrode potential or reduction potential.
3. Metal C ( potassium) which is on top of the series has highest reduction potential and thus can not be reduced by any other metal.
Electrochemical series are used:
- To predict relative reducing agent or oxidizing agent. More negative E0 shows high tendency to loose electron and so are stronger reducing agent and vice-versa.
- To calculate the difference between the reduction potential of cathode and anode that is emf of the cell.
- To predict the feasibility of the reaction i.e., whether a redox reaction can occur or not.
- To predict whether a metal can displace other metal or not.
