Question

The reversible potential of gold is more positive than platinum in emf series whereas in galvanic series the position of gold is below platinum.

(a) False

(b) True

This question was posed to me in an interview for internship.

Enquiry is from Modern Theory Applications in portion Modern Theory Applications of Corrosion Engineering

Answer 1

Correct answer is (b) True

The explanation: The reversible potential of gold is more positive than platinum in emf series whereas in galvanic series the position of gold is below platinum. It is due to the exchange current density of hydrogen evolution, as the galvanic tests are usually conducted in an acidic environment.