An electrolytic cell uses external energy to initiate the non-spontaneous chemical reaction. The cell is characterized by the addition of energy. Thus, option A is correct.
An electrolytic cell is a type of electrochemical cell that undergoes non-spontaneous reactions by deriving the energy in the form of voltage from external sources.
The redox reaction occurs when the cell uses the electric current and drives them through the two half of the cell containing the reduction and the oxidation halves.
The electrolytic cells are different from the galvanic cells as the later release energy from a series of chemical reactions, whereas the former needs energy.
Therefore, the electrolytic cell uses external energy.
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