1.

The correct statement regarding defect in solids is:(a) Frenkel defect is usually favoured by a very small difference in the sizes of cations and anions(b) Frenkel defect is a dislocation defect(c) Trapping of protons in the lattice leads to the formation of F-centers(d) Schottky defect has no effect on the physical properties of solids

Answer»

The correct option is (b) Frenkel defect is a dislocation defect.

The Schottky defect has some effect on the physical properties of solids such as lower density, lower lattice energy or stability etc.

Frenkel defect is usually favoured by a  large difference in the sizes of cations and anions. Cations are small in size than anions.

Frenkel defect is a dislocation defect. A cation moves to another position between two layers.

Trapping of electrons in the lattice leads to the formation of F-centers.



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