Solid State Question 27
Question: Each of the following solids show, the Frenkel defect except
Options:
A) $ ZnS $
B) $ AgBr $
C) $ AgI $
D) $ KCl $
Show Answer
Answer:
Correct Answer: D
Solution:
[d] In $ KCl $ , co-ordination number of cation and anion is 6 and 6 respectively.
$ KCl $ is highly ionic so Schottky defect is common. Note: Schottky defect is common in compounds having high coordination number while Frenkel defect is common in compounds with low coordination number.