In the electrolytic cell, flow of electrons is from

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cathode to anode through external circuit

cathode to anode in the solution

all of these

anode to cathode through external circuit

answer is C.

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Detailed Solution

Like galvanic cells, electrolytic cells are made up of two half cells.
One is a half-cell for reduction, while the other is a half-cell for oxidation.
However, compared to the direction of spontaneous electron flow in galvanic cells, the direction of electron flow in electrolytic cells may be reversed.
Even yet, the definitions of the cathode and anode—where reduction takes place at the cathode and oxidation at the anode—remain the same.
The indications altered because the two responses' directions were switched.
However, the cell potential's magnitude has not changed.
The flow of electrons is from cathode to anode because the internal current flow is from anode to cathode.
Consequently, it is evident from the data listed above concerning the electrolytic cell in which oxidation takes place at the anode and reduction at the cathode. As a result, electrons pass through the internal supply from the cathode to the anode.

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