The corrent statement regarding defects is solids in solids is

Options

A. Frenkel defect is favoured by a very small difference in the size of cation and anion
B. Frenkel defect is not a defination defect
C. Trapping of `r^(-)` in lattice leads in the formation of F - center
D. Schtiky defect have no effective on the physical properties of solid

Answer

C

Explanation

Topping of a in lattic to the formation of F-center.