The discovery of metal corrosion cells is attributed to which scientist?

The discovery of metal corrosion cells is attributed to which scientist?

• A. Luigi Galvani
• B. Alessandro Volta
• C. Michael Faraday
• D. Thomas Edison

Answer: (A)

The concept tested is the origin of the term galvanic cell and its link to metal corrosion. Metal corrosion cells arise when two dissimilar metals are in electrical contact in an electrolyte, creating a galvanic reaction where one metal corrodes preferentially. The name “galvanic” comes from Luigi Galvani, whose experiments with electricity produced by metals and even biological tissue first showed that electrical phenomena could occur from metal–tissue interactions. His work sparked the idea of galvanism, the phenomenon underlying galvanic cells. Later, Alessandro Volta built the first battery to provide continuous current, but the attribution for this type of corrosion-related electrochemical behavior sits with Galvani because his experiments introduced the galvanic concept. The other listed scientists contributed to related areas—Volta to practical batteries, Faraday to electrochemistry laws, Edison to electrical devices—but not to the initial discovery of metal corrosion cells.

The concept tested is the origin of the term galvanic cell and its link to metal corrosion. Metal corrosion cells arise when two dissimilar metals are in electrical contact in an electrolyte, creating a galvanic reaction where one metal corrodes preferentially. The name “galvanic” comes from Luigi Galvani, whose experiments with electricity produced by metals and even biological tissue first showed that electrical phenomena could occur from metal–tissue interactions. His work sparked the idea of galvanism, the phenomenon underlying galvanic cells. Later, Alessandro Volta built the first battery to provide continuous current, but the attribution for this type of corrosion-related electrochemical behavior sits with Galvani because his experiments introduced the galvanic concept. The other listed scientists contributed to related areas—Volta to practical batteries, Faraday to electrochemistry laws, Edison to electrical devices—but not to the initial discovery of metal corrosion cells.