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Differentiate between primitive unit cel...

Differentiate between primitive unit cell and centred unit cells.

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In a primitive unit cell, particles or points are present only at the corners while in a centred unit cell, the particles or points are also present at other positions in addition to the corner.
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Unit cells can be divided into two categories, primitive and centred unit cells. (a) Differentiate between unit cell and crystal lattice. (b) Calcualte the number of atoms per unit cell in the following: (i) body centred cubic unit cell (bcc) (ii) face centred cubic unit cell (fcc) .

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DINESH PUBLICATION-SOLID STATE-QUESTION FROM BOARD EXAMINATION
  1. How is simple cubic unit cell formed ? Calculate the number of atoms i...

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  2. Define radius ratio. What is the value of radius ratio for octahedral ...

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  3. Define the terms (i) Crystalline solids (ii) Frenkel defects (iii) n-t...

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  4. PRIMITIVE AND CENTRED UNIT CELLS

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  5. Define the terms (i) F-centres (ii) n-type semi-conductors (iii) Ferri...

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  6. Explain Schottky defect in Stoichiometric crystals. What are the conse...

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  7. For crystal sodium chloride, state (i) the type of lattice in which ...

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  8. What is unit cell ? Write formula to calculate the density of a unit c...

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  9. (a) Define the terms crystalline and amorphous solids. (b) Explain S...

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  10. Sodium crustallises in bcc unit cell. Calculate the approximate no. of...

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  11. The number of atoms per unit cell in a simple cube, face - centred cub...

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  12. (a) Based on the nature of the intermolecular foces, classify solids b...

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  13. Give reasons : (i) In stoichiometric dfects. NaCl exhibits Schottky ...

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  14. (a) If the radius of octahedral void is 'r' and the radius of the atom...

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  15. Following is the schematic alignment of magnetic moments : Indeti...

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  16. Analyses shows that FeO has a non-stoichiometric composition with form...

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  17. ZnO crystals on heating acquires the formuls Zn(1+x)O. Or There is...

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  18. What are paramagnetisma and ferromagnetism ? What type of substances w...

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  19. What is the number of atoms per unit cell in a body centred cubic stru...

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  20. Differentiate between primitive unit cell and centred unit cells.

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