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(i) What type of non-stoichiometric poin...

(i) What type of non-stoichiometric point defect is responsible for the pink colour of LiCl ?
(ii) What type of stoichiometric defect is shown by NaCl ?

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(i) Excess lithium makes LiCl crystal pink. It is caused by metal excess defect due to anionic vacancies (F-centres).
(ii) NaCl shows Schottky defect.
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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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