Question

Dry corrosion takes place in __________

(a) Homogeneous solutions

(b) Heterogeneous solutions

(c) Neither homogeneous nor heterogeneous

(d) Both homogeneous and heterogeneous solutions

I have been asked this question at a job interview.

Question is taken from Types of Corrosion and Passivity topic in division Electro Chemical Cells and Corrosion of Applied Chemistry

Answer 1

Correct choice is (d) Both homogeneous and heterogeneous solutions

To explain: Dry corrosion takes place in both homogeneous and heterogeneous solutions. The wet corrosion takes place in only heterogeneous processes.