Answer:
The reduction half-reaction of a redox reaction
Explanation:
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The reduction of half-reaction of a redox reaction. Hence, option B is correct.
An electrolytic cell converts electrical energy into chemical energy or vice versa.
A galvanic cell is an electrochemical cell in which chemical energy is converted to electrical energy. The chemical reaction which drives a galvanic cell is a redox reaction i.e. a reduction-oxidation process.
A typical galvanic cell is composed of two electrodes immersed in a suitable electrolyte and connected via a salt bridge. One of the electrodes serves as a cathode where reduction or gain of electrons takes place. The other half cell functions as an anode where oxidation or loss of electrons occurs. Batteries and fuel cells are examples of galvanic cells.
Hence, option B is correct.
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