Question

a short note on electrochemical series for 8 marks question

Answer 1

HEY!!

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✔The arrangement of elements in increasing order of electrode potential E°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.

✴Electrochemical series are used for:-

▶To predict relative reducing agent or oxidizing agent. More negative E° 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.