Question
Chemistry Question on The solid state
Each of the following solids show, the Frenkel defect except
A
ZnS
B
AgBr
C
AgI
D
KCl
Answer
KCl
Explanation
Solution
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 nummber while Frenkel defect is common in compounds with low coordination number.