Q.
Which kind of defect is shown by the given crystal?
$K^{+}\ \ Cl^{-}K^{+}\ \ Cl^{-}K^{+}\ \ Cl^{-}$
$Cl^{-}$ $\square$ $Cl^{-}K^{+}\square$ $K^{+}$
$K^{+}Cl^{-}\ \square\ Cl^{-}K^{+}Cl^{-}$
$Cl^{-}K^{+}Cl^{-}K^{+ \ }\square{\ K}^{+}$
A) Schottky defect
B) Frenkel defect
C) Schottky and Frenkel defects
D) Substitution disorder
Explanation
(a)
In the given crystal equal number of cations and anions are missing (two $K^{+}$ and two ${Cl}^{-})\$from their normal lattice sites and the crystal maintains electrical neutrality. Hence, this is Schottky defect.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.