Which device uses electricity to drive a non-spontaneous redox reaction?

• A. Galvanic Cell
• B. Anode
• C. Electrolytic Cell
• D. Cathode

Answer: (C)

When a redox reaction would not occur on its own, you need an external energy source to push it forward. An electrolytic cell does exactly that: you connect a power supply and apply a potential that forces electrons to flow so that reduction happens at one electrode and oxidation at the other. In this setup, the external energy drives a non-spontaneous reaction, making the process occur in the direction set by the applied voltage. This is different from a galvanic cell, which relies on a spontaneous redox reaction to generate electricity rather than to be driven by it. The terms anode and cathode refer to the electrodes involved, not to a device itself.