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Account for the following : (i) Schott...

Account for the following :
(i) Schottky defects lower the density of related solids.
(ii) Conductivity of silicon increases on doping it with phosphorus.

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(i) In schottky defect, some ions are missing (or due to vacancies) from their normal lattice sites due to which density decreases.
(ii) This is due to availability of unpaired or odd electron provided by Phosphorus.
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OSWAAL PUBLICATION-SOLID STATE-TOPIC -2 (SHORT ANSWER TYPE QUESTIONS)
  1. Give any two differences between Frenkel and Schottky defects.

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  2. Based on electron gas theory explain why metals are malleable.

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  3. Account for the malleability and ductility of metals on the basis of e...

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  4. Based on electron gas theory explain why metals are malleable.

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  5. Describe the one major type of semiconductors and contrast their condu...

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  6. Define antiferromagnetism with example.

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  7. Define ferrimagnetism with suitable examples.

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  8. Examine the given defective crystal and {:(A^(+),B^(-),A^(+),B^(-),A...

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  9. (i) What type of non-stoichiometric point defect is responsible for th...

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  10. How will you distinguish between the following pairs of terms : Tetr...

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  11. (i) Write the type of magnetism observed when the magnetic moments are...

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  12. (i) Write the type of magnetism observed when the magnetic moments are...

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  13. Account for the following : (i) Schottky defects lower the density o...

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  14. (a) Why does presence of excess of lithium makes LiCl crystals pink ? ...

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  15. (a) What change occurs when AgCl is doped with CdCl(2) ? (b) What ty...

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  16. Explain the following terms with suitable examples : Ferromagnetism an...

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  17. What is a semiconductior ? Give names the two main types of Semi-condu...

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  18. What are intrinsic semiconductors ? Give an example.

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  19. Explain the Schottky defect terms with suitable examples.

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  20. Explain the 12-16 compounds terms with one suitable example :

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