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A hcp structure contains N atoms. Number...

A hcp structure contains N atoms. Number of tetrahedral and octahedral holes in this structure are ________ and _________, respectively.

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2N, N,
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CHHAYA PUBLICATION-SOLID STATE-EXERCISE
  1. Crystals are classified into crystal system.

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  2. Number of Bravais lattices are .

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  3. A hcp structure contains N atoms. Number of tetrahedral and octahedral...

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  4. Number of octahedral holes per particle in a fcc lattice (is/are)

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  5. A crystal with F-centres is associated with defect.

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  6. Defect that is found to occur in the crystal of Fe(0.88)O(1.00) is cal...

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  7. Why are crystalline substances anisotropic?

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  8. Classify the solid that has the given characteristics: (i) very hard, ...

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  9. Mention the differences between a molecular solid and a network solid ...

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  10. Identify the crystal system whose unit cell parameters are anebnecanda...

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  11. How much portion of a corner particle of cubic unit cell does lie with...

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  12. How much portion of an edge-centred particle of a cubic unit cell does...

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  13. An ionic solid M(x)A(y) has a cubic unit cell with M^(y+) ions at its ...

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  14. Mention two differences between Schottky and Frenkel defects.

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  15. Arrange simple, body-centred and face-centred cubic unit cells in orde...

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  16. What are non-stoichiometric defects? Give two example of such defects.

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  17. Why aren't Frenkel defects observed in pure halides of alkali metals?

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  18. Why does KCl become violet in colour when it is heated in presence of ...

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  19. What do you understand by a tetrahedral void in a close-packed structu...

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  20. What do you understand by an octahedral void in a close-packed crystal...

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