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What is F-centre? Why is a solid with F-...

What is F-centre? Why is a solid with F-centres paramagnetic?

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Due to the presence of unpaired electrons, in F-centres,
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CHHAYA PUBLICATION-SOLID STATE-EXERCISE
  1. What happens when a ferromagnetic substance is heated at very high tem...

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  2. What is point defect? Give an example.

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  3. What is F-centre? Why is a solid with F-centres paramagnetic?

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  4. Of the following crystalline solids which one is molecular solid, and ...

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  5. What is the coordination of an atom of a metal with bcc structure?

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  6. Which crystal system does have all four types of unit cell, i.e., simp...

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  7. Radius of particle in a fcc unit cell is 0.3535 times the edge length ...

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  8. What type of unit cell do ccp and hcp structures possess?

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  9. A simple cubic unit cell with edge length 'a' contains particle with r...

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  10. What are the percentages of empty space in body-centred and face-centr...

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  11. What is an impurity defect?

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  12. What are the coordination numbers of each particles in square and hexa...

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  13. What is space lattice?

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  14. What is lattice point?

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  15. What do you understand by unit cell of a crystal?

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  16. What is impurity or extrinsic semiconductor? Give an example.

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  17. What is the coordination number of a particle in an hcp or a ccp struc...

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  18. What is a ferromagnetic substance? Give an example.

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  19. What is a ferrimagnetic substance? Give an example.

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  20. The constiuent particle in solid H(2) and the attractive forces holdi...

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