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What are metal excess defects in crystal...

What are metal excess defects in crystals ? How are these caused ?

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Metal excess defect arises due to

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DINESH PUBLICATION-SOLID STATE-ASSIGNMENT
  1. What are impurity defects ? Explain.

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  2. What do yor understand by doping ?

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  3. What are metal excess defects in crystals ? How are these caused ?

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  4. What will happen when a small amount of phosphorus is addded to pure c...

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  5. What is the effect of Frenkel defect on the electrical conductivity of...

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  6. Why does KCl turn violet on heating in the potassium vapours ?

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

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  8. What do you understand by imperfections in ionic crystals ? Name the t...

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  9. How will you show that non-stoichiometic solium chloride is yellow ?

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  10. What are non-stoichiometry defects in crystals ? Explain.

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  11. Explain Scottky defect.

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

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  13. Write notes on : (i) Frenkel defects (ii) Schottky defect.

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  14. Explain on brief Schottky defect.

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  15. What is the point defect due to the presence of foreign atom ? ltbRgt ...

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  16. ELECTRONIC AND LINE IMPERFECTIONS

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  17. Explain Frenkel defect in ionic crystals. What type of compounds exhib...

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  18. Why is phosphours doped silicon a semi-conductor?

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  19. Explain the conductivity of n-type semi-conductors.

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  20. Schottky defect lowers the density of ionic crystals while Frenkel def...

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