The correct statement regarding defect in solids is

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Frenkel defect is usually favoured by a very small difference in the sizes of cations and anions

Frenkel defect is a dislocation defect

Schottky defect has no effect on the physical properties of solids

Trapping of proton in the lattice leads to the formation of F-centers

answer is B.

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Detailed Solution

A small difference in sizes of cation and anion favour Schottky defect while Frenkel defect is favoured by large difference in sizes of cation and anion
Trapping of an electron in the lattice leads to the formation of F-center
In Schottky defect, some of the atoms or ions remaining absent from their normal lattice points without distorting the original unit cell dimension. This lowers the density of solid

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