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In a tetragonal crystal...

In a tetragonal crystal

A

`a=b=c " " alpha=beta=gamma=90^@`

B

`a=bnec " " alpha=beta=gamma=90^@`

C

`anebnec " " alpha=beta=gamma=90^@`

D

`anebnec " " alpha=beta=gammane90^@`

Text Solution

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The correct Answer is:
B
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AAKASH INSTITUTE ENGLISH-THE SOLID STATE -ASSIGNMENT SECTION-A (OBJECTIVE)
  1. Ingraphite, the layers of carbon atoms are held by

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  2. How many formula units are there in the unit cell of sodium chloride ?

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  3. In a tetragonal crystal

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  4. The most unsysmmetrical and symmeterical systems are, respectively:

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  5. Which of the following systems do not give correct discription of axia...

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  6. the percentage of empty space in a body centred cubic arrngemen...

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  7. What is the formula of a compound in which the element Y forms ccp lat...

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  8. A solid compound contains X,Y and Z atoms in a cubic lattice with X at...

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  9. The coordination number of metal crystallising in a hexagonal close pa...

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  10. In a face centred cubic (fcc) lattice, a unit cell is shared equally b...

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  11. The simplest unit of three dimensional arrangement of lattice points w...

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  12. The crystal system of a compound with unit cell dimensions a=0.387,b=0...

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  13. In ABC ABC packing if the number of atoms in the unit cell is n then t...

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  14. In an ionic compound XY(2)O(4) oxide ions are arranged in ccp. Cations...

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  15. If the number of atoms per unit in a crystal is 2, the structure of cr...

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  16. Which of the following is ferromagnetic compound ?

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  17. Total volume of atoms present in a fcc unit cell of a metal with radiu...

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  18. The intermetallic compound LiAg crystallizes in cubic lattice in which...

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  19. The ratio of closed packed atoms to tetrahedral holes in cubic close p...

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  20. Na and Mg crystallize in bcc- and fcc-type crystals, respectively, the...

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