1.

The correct statement regarding defect in solids is (are)

Answer»

Frenkel defects are USUALLY favoured by a very small differences in the sizes of the cation and anion
Frenkel DEFECT is a dislocation defect
Trapping of an ELECTRON in the lattice leads to the formation of F-centre
Schottky defects have no effect on the physical properties of solids

SOLUTION :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.


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