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प्रश्न
Answer the following question.
What type of stoichiometric defect is shown by ZnS and why?
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उत्तर
The stoichiometric defect shown by ZnS is Frenkel defect which is due to the large difference in the size of the ions, i.e. due to the small size of Zn2+.
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संबंधित प्रश्न
Explain the following term with a suitable example:
Interstitials
Give reasons : In stoichiometric defects, NaCl exhibits Schottky defect and not Frenkel defect.
Out of NaCl and AgCl, which one shows Frenkel defect and why?
The following diagram shows:
Alkali halids do not show Frenkel defect because ____________.
Which of the following point defects are shown by AgBr(s) crystals?
- Schottky defect
- Frenkel defect
- Metal excess defect
- Metal deficiency defect
Which of the following defects is also known as dislocation defect?
Why is FeO (s) not formed in stoichiometric composition?
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. |
The incorrect statement about the imperfections in solids is ______.
