Question

Which of the following is/are the characteristics of a Galvanic series?

(a) Used only for pure metals

(b) Less accurate prediction than EMF series

(c) Includes active and passive potentials of a metal

(d) Measured only at room temperature

The question was posed to me by my school principal while I was bunking the class.

This intriguing question originated from Principles in section Corrosion Principles of Corrosion Engineering

Answer 1

Correct option is (c) Includes active and passive potentials of a metal

Best explanation: Galvanic series is the arrangement of various engineering materials (pure metals and alloys) in a decreasing reduction potential value in seawater. Galvanic series is more accurate than EMF series and it can be measured at various temperatures of a specific medium. It includes the active state potential and passive state potential of a metal.