In an imperfect crystal , both cation and anion have left the lattice. The cystal defect is known as
Interstitial defect
Vacancy defect
non stoichiometric defect
Schottky defect
Schottky defect( diagram).
In schottky defects equal no. of cations and anions miss from their lattice sites.
Which of the following defects is also known as dislocation defect ?
(a) Frebkel defect (b) Schottky defect
(c)Non-stoichiometric defect (d)Simple interstitial defect
Cations are present in the interstitial sites in ...........
(a) Frenkel defect (b) Schottky defect
(c) vacancy defect (d) metal deficiency defect
Which of the following defects decrase the density ?
(a) Interstitial defect (b) Vacancy defect
(c) Frenkel defect(d) Schottky defect