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The crystal system of a compound with un...

The crystal system of a compound with unit cell dimensions a = 0.388 , b = 0.388 and c = 0.506 nm and `alpha = beta = 90^@ and gamma = 120^@` is

A

cubic

B

hexagonal

C

orthorhombic

D

rhombohedral

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The correct Answer is:
B
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MODERN PUBLICATION-SOLID STATE-REVISION EXERCISES (OBJECTIVE QUESTIONS) (MULTIPLE CHOICE QUESTIONS)
  1. The crystal system of a compound with unit cell dimensions a = 0.388 ,...

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  2. In which of the following pairs, both the crystals are not of the same...

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  3. Which of the following statements is not true about crystalline solids...

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  4. A metal crystallizes in a ccp structure. Its metallic radius is 141.5 ...

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  5. In a face centred cubic unit cell of close packed atoms, the radius of...

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  6. The number of atoms present in a hexagonal close-packed unit cell is:

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  7. In a hcp arrangement, each atom at the corner contributes to the unit ...

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  8. A metal crystallizes in fcc lattice and edge of the unit cell is 620 p...

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  9. A compound formed by elements A and B crystallizes in cubic structure ...

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  10. Which of the following is not an example of 13-15 commpound ?

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  11. If the alignment of magnetic moments in a subtance is in a compensator...

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  12. Fe(3)O(4) is ferrimagnetic at room temperature but at 850K it becomes:...

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  13. The appearance of colour in solid alkali metal halides is generally du...

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  14. An example of a ferromagnetic oxide is

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  15. Close packing is maximum in the crystal lattice of :

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  16. In a solid lattice the cation has left a lattice sirte and is located ...

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  17. The coordination number of a metal crystallizing in a hexagonal close-...

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  18. In a body centred unit cell, the number of atoms present is

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  19. In a trigonal crystal

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  20. The appearance of colour in solid alkali metal halides is generally du...

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