What is stoichiometric defect? State its types.
(N/A) stoichiometric defect is a point defect in a crystal lattice that does not disturb the stoichiometry of the solid. These are also known as intrinsic or thermodynamic defects.
They are primarily classified into two types for non-ionic solids:
$(i)$ Vacancy defect
$(ii)$ Interstitial defect
For ionic solids,these defects are classified as:
$(i)$ Schottky defect
$(ii)$ Frenkel defect
They are primarily classified into two types for non-ionic solids:
$(i)$ Vacancy defect
$(ii)$ Interstitial defect
For ionic solids,these defects are classified as:
$(i)$ Schottky defect
$(ii)$ Frenkel defect
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Similar Questions
$ZnO$ shows yellow colour on heating due to:
Medium
View SolutionThe correct statement among the following,regarding defects in solids is:
$(1)$ Frenkel defect is favored by small difference in the sizes of cation and anion.
$(2)$ Frenkel defect is a metal excess defect.
$(3)$ Trapping of electron in the lattice leads to formation of $F$-centres.
$(4)$ Schottky defect has no effect on the physical property of solids.
$(1)$ Frenkel defect is favored by small difference in the sizes of cation and anion.
$(2)$ Frenkel defect is a metal excess defect.
$(3)$ Trapping of electron in the lattice leads to formation of $F$-centres.
$(4)$ Schottky defect has no effect on the physical property of solids.
Assertion: In an ionic solid $(MX)$,Schottky defect contains an equal number of cations and anions.
Reason: Equal number of vacancies are present for both cations and anions.
Reason: Equal number of vacancies are present for both cations and anions.
Medium
View SolutionAlkali halides do not show dislocation defect because
Schottky defect in a crystal is observed when,
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