The emf of a cell is equal to:
Correct answer: A. Emf(oxidation) - Emf(reduction)
- A. Emf(oxidation) - Emf(reduction)
- B. Emf(oxidation) + Emf(reduction)
- C. Emf(oxidation) x Emf(reduction)
- D. None of these options are correct
Explanation
This formula is present in the book:Emf of a cell = Oxidation Potential of Anode - Reduction Potential of Cathode.
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About Standard Hydrogen Electrode
The standard hydrogen electrode provides the reference potential of 0.00 V for measuring electrode potentials. It consists of platinum in contact with hydrogen gas at standard pressure and hydrogen ions at standard concentration, usually at 25°C, and can operate as either the oxidation or reduction half-cell.
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