Q.
What type of crystal defect is indicated in the diagram below?
A) Frenkel defect
B) Schottky defect
C) Interstitial defect
D) Frenkel and Schottky defects
Explanation
(b)
When equal number of cations and anions (such, that charges are equal) are missing $(1\ {Na}^{+},\ 1\ {Cl}^{-}/1\ {Fe}^{2 +},\ 2\ {Cl}^{-}).\$
It is a case of Schottky defect.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.