The correct statement(s) regarding defects in solids is (are)

Options

A. Frenkel defects are usually favoured by a very small differences in the sizes of the 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

Answer

B,C

Explanation

Frenkel defect is also called dislocation defect because smaller ions are dislocated from their lattice sites into the interstitial sites. Hence, (b) is correct. Trapping of an electron leads to the formation of F-centre. Hence, (c ) is correct.