NEET2017Chemistry-Solid State
NEET 2017 Chemistry Crystal Defects MCQ Question
Type: MCQ-conceptual-Medium-Class 11
Which is the INCORRECT statement?
A
Density decreases in case of crystals with Schottky's defect.
B
NaCl(s) is insulator, silicon is semiconductor, silver is conductor, quartz is piezoelectric crystal.
C
Frenkel defect is favoured in those ionic compounds in which sizes of cation and anions are almost equal.
D
FeO₀.₉₆ has nonstoichiometric metal deficiency defect.
Correct Answer
Option C
Detailed Explanation
Frenkel defect occurs in ionic compounds where there is a significant size difference between cations and anions, not when they are almost equal.
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