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What type of stoichiometric defect is sh...

What type of stoichiometric defect is shown by NaCl ? Explain.

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(a) In stoichiometric defects: Schottky defect.
(b) In non-stoichiometric defects: Metal excess due to anionic vacancies.
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MODERN PUBLICATION-SOLID STATE-CONCEPTUAL QUESTIONS 2
  1. What change occurs when AgCl is doped with CdCl(2) ?

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  2. What type of stoichiometric defect is shown by NaCl ? Explain.

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  3. Analyses shows that FeO has a non-stoichiometric composition with form...

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  4. Following is the schematic alignment of magnetic moments : Ident...

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  5. Name any one solid in which both Frenkel and Schottky defects occur.

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  6. What is the effect of temperature on the conductivity of metals and se...

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  7. Why is Frenkel defect not found in pure alkali metal halides ?

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  8. What is the effect of Schottky defect on the density of crystal ?

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  9. What is the difference in the semi - conductors obtained by doping sil...

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  10. Identify the type of defect shows in the following figure : What typ...

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  11. What type of semiconductor is obtained when : (i) Ge is doped with ...

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  12. Name the compound that can be added to AgCl so as to produce cation va...

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  13. Which point defect lowers the density of a crystal?

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  14. How does the electrical conductivity of super- conductors vary with te...

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  15. Name the non-stoichiometric point defect responsible for the colour of...

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  16. Give reason : (a) Why is Frenkel defect found in AgCl ? (b) What i...

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  17. Why does ZnO appear golden yellow at high temperature ? Explain.

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  18. The electrical conductivity of a metal decreases with rise in temperat...

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  19. Why does zinc oxide exhibit enhanced electrical conducity on heating ?

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  20. Out of NaCl and AgCl, which one shows Frenkel defect and why ?

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