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Question
non-stoichiometric defects?
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Solution
The defect shown by NaCl in non-stoichiometric defect is metal excess defect due to anionic vacancies which is known as F-centre.
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RELATED QUESTIONS
Out of NaCl and AgCl, which one shows Frenkel defect and why?
Ionic solids containing large differences in sizes of ions show ____________.
Frenkel defects are not found in alkali metal halides because ____________.
The following diagram shows:
Assertion: No compound has both Schottky and Frenkel defects.
Reason: Both defects change the density of the solid.
Alkali halids do not show Frenkel defect because ____________.
Frenkel defect is also known as:
(i) stoichiometric defect
(ii) dislocation defect
(iii) impurity defect
(iv) non-stoichiometric defect
Which of the following defects decrease the density?
(i) Interstitial defect
(ii) Vacancy defect
(iii) Frankel defect
(iv) Schottky defect
Given below are two statements, one is labelled as Assertion (A) and the other is labelled as Reason (R):
Assertion: In any ionic solid (MX) with Schottky defects, the number of positive and negative ions are same.
Reason: Equal number of cation and anion vacancies are present.
The incorrect statement about the imperfections in solids is ______.
