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(a) Give two differences between ferroma...

(a) Give two differences between ferromagnetic and anti-ferromagnetic substances.
(b) Tungsten crystallizes in body centred cubic lattice. Calculate the number of unit cells in 1.5 g of tungsten. (At mass of tungsten = 184 u)

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Tungsten crystallizes in body centred cubic lattice. Calculate the number of unit cells in 1.5 g of tungsten crystallizes in body centred cubic lattice . Calculate the number of unit cells in 1.5 g of tungsten (Atomic mass of tungsten = 184 u).

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Potassium crystallizes in a body centered cubic lattice. What is the approximate number of unit cells in 4.0g of potassium? Atomic mass of potassium = 39.

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MODERN PUBLICATION-SOLID STATE-REVISION EXERCISES (SHORT ANSWER QUESTIONS)
  1. why does the electrical conductivity of semiconductors increse w...

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

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  3. (a) Give two differences between ferromagnetic and anti-ferromagnetic ...

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

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  5. What type of semi-conductor is produced when silicon is doped with bor...

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

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

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

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  9. Distinguish between crystal lattice and unit cell.

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

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  11. Define ferromagnetism and ferrimagnetism .

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  12. Unit cells can be divided into two categories, primitive and centred u...

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  13. Calculate the percentage of packing efficiency in simple cubic unit ce...

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  14. Example the following with suitable examples: a. Ferromagnetism b. P...

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  15. (a) Defince the following terms : (i) F-centre (ii) Unit cell (...

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  16. Write two points of distinction between Schottky and Frenkel defects.

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

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  18. Which of the following lattices has the highest packing efficency (a) ...

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  19. (a) Based on the nature of intermolecular forces, classify the followi...

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

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