Question

In anodic coatings, the coating metals possess __________ reduction potential than base metal.

(a) Higher

(b) Lower

(c) Zero

(d) Cannot be said

This question was posed to me in a job interview.

This interesting question is from Protective Coatings in division Electro Chemical Cells and Corrosion of Applied Chemistry

Answer 1

Correct choice is (b) Lower

For explanation I would say: In anodic coating, the coating metals possess the lower reduction potential than base metal. The coating metals possess the higher reduction potential than base metal.