Q21 / 160 · TS EAMCET 2024 (09 May Shift 2) · Chemistry

Identify the correct statement about the crystal defects in solids,

  • A
    Frenkel defect is favoured when the difference between sizes of cation and anion is very small
  • B
    Frenkel defect is not a dislocation effect
  • C
    Schottky defects have no effect on physical properties of solids
  • Correct answer
    D
    Trapping of electrons in lattice leads to the formation of F-centres

Solution

Trapping of electrons in Lattice leads to the formation of F - centres. 1- Frenkel defect is favoured when the difference between size of cation and anion is larger. 2- Frenkel defect is also called dislocation defect. 3- Schottky defect have effect on phyṣical properties o? solids. It decreases the density of the substance.

Hence, the correct answer is option: 'D'.

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