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प्रश्न
Which of the following point defects are shown by AgBr(s) crystals?
- Schottky defect
- Frenkel defect
- Metal excess defect
- Metal deficiency defect
विकल्प
A and B
C and D
A and C
B and D
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उत्तर
A and B
Explanation:
AgBr shows both Schottky and Frenkel defects.
In AgBr, both Ag+ and Br ions are absent from the lattice causing Schottky defect. However, Ag+ ions are mobile so they have a tendency to move aside the lattice and trapped in interstitial site, hence causing Frenkel defect.
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संबंधित प्रश्न
Give reasons : In stoichiometric defects, NaCl exhibits Schottky defect and not Frenkel defect.
What type of defect is shown by NaCl in
stoichiometric defects, and
Out of NaCl and AgCl, which one shows Frenkel defect and why?
Answer the following question.
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Type of stoichiometric defect shown by AgBr is ____________.
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Silver halides generally show:
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Schottky defect is observed in crystals when ______.
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(iii) Impurity defect has no effect on the density of the substance.
(iv) Frankel defect results in an increase in the density of the substance.
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(ii) Vacancy defect
(iii) Frankel defect
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If NaCl is doped with 10–4 mole percent of SrCl2 the concentration of cation vacancies will be
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