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The atomic radius for a face - centred c...

The atomic radius for a face - centred cubic cell of lattice   parameter 'a' is 

A

`(sqrt2)/(4)a`

B

`(sqrt3)/(4)a`

C

`(a)/(2)`

D

`(a)/(sqrt8)`

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The correct Answer is:
A
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AAKASH SERIES-SOLIDS STATE-PRACTICE EXERCISE
  1. The positions of Cl^(-) ions in NaCl structure are

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  2. The number of NaCl units present in a unit cell of NaCl are

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  3. The atomic radius for a face - centred cubic cell of lattice   paramet...

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  4. The lattice parameter (edgelength) for a body-centred cubic cell of at...

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  5. {:("List - I","List - II"),("A) Ionic solid","1) soft"),("B) Covalent ...

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  6. The lattice parameter for a simple cubic unit cell of atomic radius 'r...

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  7. The packing fraction in a simple cubic cell of crystals is :

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  8. A solid AB has NaCl type structure. If the radius of the cation A is 1...

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  9. Which one of the following statements is incorrect about rock salt typ...

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  10. In sodium chloride, Cl^(-) ions form ccp arrangement. In which sites, ...

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  11. The packing fraction in a face - centred cubic cell of crystals is

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  12. A hydrogen bonded molecular crystal among the following:

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  13. The crystal system of a compound with unit cell dimensions a = 0.387, ...

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  14. {:("List - I","List - II"),("(Crystal System)","(Exmaple)"),("A) Ortho...

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  15. Three metals X, Y and Z are crystallised in simple cubic, B. C. C and ...

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  16. X-rays of wavelength equal to 0.134 nm give a first order diffraction ...

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  17. In a diffraction experiment, X-rays of wavelength 0.14 nm were used on...

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  18. (A): ABAB ..... pattern of close packing gives hcp arrangement (R): ...

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  19. In a cubic arrangement of A and B atoms, A atoms are at corners of uni...

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  20. In a hypothetical ionic crystal, B is arranged in cubic close packing ...

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