GK
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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cathode to anode
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anode to cathode
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Either A or B
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None of the above
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Detailed explanation-1: -Internally the direction of flow of current is from anode to cathode and hence the electron flow is from cathode to anode.
Detailed explanation-2: -In an electrochemical cell, the higher positive potential is the cathode, therefore the conventional current direction is from the cathode to the anode through the conductor (metallic path) and from the anode to the cathode in the electrolyte (Figure 1).
Detailed explanation-3: -Therefore, electron is moving from cathode to anode via internal circuit.
Detailed explanation-4: -The electrons always flow from the anode to the cathode. The half-cells are connected by a salt bridge that allows the ions in the solution to move from one half-cell to the other, so that the reaction can continue.
Detailed explanation-5: -The cathodic current, in electrochemistry, is the flow of electrons from the cathode interface to a species in solution. The anodic current is the flow of electrons into the anode from a species in solution.