Question

In a galvanic cell, the electrons flow from:

• A. anode to cathode through the solution
• B. cathode to anode through the solution
• C. anode to cathode through the external circuit
• D. cathode to anode through the external circuit

Answer 1

Answer: (C)

anode to cathode through the external circuit

In galvanic cell, the $Zn\left(s\right)$ gives up its electrons to form $Z{n}^{2+}$ ions. The electrons remain behind on the $Zn$ electrode. As the $Zn$ is oxidized, the $Zn$ electrode is the anode.

The electrons flow through an external circuit to the copper electrode. As $c{u}^{+}$ is reduced the $Cu$ electrode is the cathode.

Hence galvanic cell, electrons flow from anode to cathode through an external circuit.