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प्रश्न
non-stoichiometric defects?
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उत्तर
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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संबंधित प्रश्न
What type of defect is shown by NaCl in
stoichiometric defects, and
Defect shown by non-ionic solids is ____________.
Defects in solids can be studied using
Frenkel defects are not found in alkali metal halides because ____________.
Which is not correct about the Schottky defects?
In a Schottky defect ____________.
Which of the following defects is also known as dislocation defect?
Match the defects given in Column I with the statements in given Column II.
| Column I | Column II |
| (i) Simple vacancy defect | (a) shown by non-ionic solids and increases density of the solid. |
| (ii) Simple interstitial defect | (b) shown by ionic solids and decreases density of the solid. |
| (iii) Frenkel defect | (c) shown by non ionic solids and density of the solid decreases. |
| (iv) Schottky defect | (d) shown by ionic solids and density of the solid remains the same. |
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 ______.
