The corrent statement regarding defects is solids in solids is

Options

A. Frenkel defect is usually favored by a very small difference in the sizes of cation and anion
B. Frenkel defect is a dislocation defect
C. Trapping of an electron in the lattice leads to the formation of F-centre
D. Schottky defects have no effect on the physical properties of solids

Explanation

Schottky defect is usually favoured by a very small difference in the sizes of cation and anion. The crystal which exhibit Schottky defect shows lower density.