Q. Which of the following statements about the interstitial compounds is incorrect?
A) They retain metallic conductivity
B) They are chemically reactive
C) They are much harder than the pure metal
D) They have higher melting points than the pure metal
Explanation
[Solution from source] Interstitial compounds (small atoms like H, C, N trapped in metal lattices) keep metallic conductivity, are very hard and have high melting points, but they are chemically inert. So calling them chemically reactive is incorrect. Answer (2).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.