Question

What is Corrosion?

(a) Destruction or deterioration of a material

(b) Conversion of metal atoms to metallic ions

(c) Conversion of metal ions to metal atoms

(d) Destruction of materials involving in the conversion of metal atoms into metal ions

The question was asked in an interview.

This intriguing question originated from Corrosion and its Classification in section Corrosion Principles of Corrosion Engineering

Answer 1

Correct answer is (d) Destruction of materials involving in the conversion of metal atoms into metal ions

To elaborate: Corrosion is a destructive or deterioration of a material because of reaction with its environment. It occurs due to the higher stability of metal ions than the metal atoms.