Which of the following readily sublime and form a protective layer on the metal surface?
(a) Anodic inhibitor
(b) Cathodic inhibitor
(c) Volatile inhibitors
(d) Non-volatile inhibitors
The question was asked in a national level competition.
This interesting question is from Protective Measures Against Corrosion in portion Corrosion, Electrolysis, Fuel Cells and Batteries of Engineering Chemistry II