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Explain the following : (i) Why is Fr...

Explain the following :
(i) Why is Frenkel defect not found in pure alkali metal halides?
(ii) Anti-ferromagnetic substances have unpaired electrons but their dipole moment is zero.

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MODERN PUBLICATION-SOLID STATE-REVISION EXERCISES (SHORT ANSWER QUESTIONS)
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  2. In terms of band theory, what is the difference between a. a condcut...

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  3. Explain the following : (i) Why is Frenkel defect not found in pure...

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  4. why does the electrical conductivity of semiconductors increse w...

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  5. What are paramagnetism and ferromagnetism ? What type of substances wo...

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  6. How does antiferromagnetism differ from ferromagnetism in terms of mag...

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  7. Explain the following terms : (i) Schottky defects (ii) Frenkel d...

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  8. IMPERFECTIONS IN SOLIDS

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  9. (a) Define ferromagnetism and ferrimagnetism. (b) Differentiate betw...

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  10. why does the electrical conductivity of semiconductors increse w...

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  11. (i) What is a semiconductor ? Mention two main types of semiconductors...

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  13. (a) NaCl has fcc structure. Calculate the number of NaCl units in a un...

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

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  16. Explain the following (i) F - centres (ii)Doping .

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  17. Write two points of distinction between crystalline and amorphous soli...

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  18. Distinguish between crystal lattice and unit cell.

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  19. (a) Briefly discuss Schottky defect and give examples. (b) Calculate...

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  20. Define ferromagnetism and ferrimagnetism .

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