NCERT Solutions for Class 12 Chemistry Chapter 2 Electrochemistry Page No. 3 NCERT Academic Session 2023-2024.
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A half-cell is one of the two electrodes in a galvanic cell or simple battery. For example, in the Zn−Cu battery, the two half cells make an oxidizing-reducing couple. Placing a piece of reactant in an electrolyte solution makes a half cell. The copper electrode may be called the reduction half-cell and the zinc electrode, the oxidation half-cell.