Defects in solid

The corrent statement regarding defects is solids in solids is

Defects in ionic solid|Types of stoichiometric defects|Schottky defect

Structure OF Corundum || Structure OF Rutile || Structure OF Perovskite || Spinel and inverse Spinel || Defects in Crystal || Stoichiometric Defects in non-ionic Solids/ Vacancy Defects/ Interstitial Defects || Defects In Ionic Solids /Schottky Defects/Frenkel Defects

(A): Thermodynamically all solids possess a tendency to acquire defects (R): During defects the entropy of the system increases in solids.

The incorrect statement regarding defects in crystalline solids is

The incorrect statement regarding defects in crystalline solid is