In a voltaic cell, what is the build-up on the cathode called?
- Hydration.
- Polarization.
- Sulphation.
Afshinarabi asking:
polarization is corect
Community Comments (2)
D
Devraj_S Posts: 6 14.05.2026 / 04:38
The asker is correct here. In a voltaic cell the build-up of hydrogen on the cathode is called polarization, and it gradually opposes current flow until removed by a depolarizer. The marked answer appears incorrect; sulphation is a lead-acid plate phenomenon and does not belong to a primary voltaic cell, per Module 3.6 batteries and cells.
D
dimky Posts: 513 14.05.2026 / 11:53
Hello. Corrected, thank you.
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