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in the cubic packing , the unit cell ...

in the cubic packing , the unit cell has ………. .

A

4 tetrahedral voids each of which is shared by four adjacent unit cells

B

4 tetrahedral voids within the unit cell

C

8 tetrahedral voids each of which is shared by four adjacent unit cells

D

8 tetrahedral voids within the unit cells

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The correct Answer is:
D
in the cubic close packing the unit cell has 8 tetrahedral voids within it and are locted at each eight smaller cube of an unit cell .
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NCERT EXEMPLAR-SOLID STATE-Solid State
  1. the correct order of the packing effeciency in different types o...

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  2. which of the follwing defects is also known as dislocation defect ...

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  3. in the cubic packing , the unit cell has ………. .

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  4. the edge langth of the unit cells in terms of the radius of spher...

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  5. which of the following repesents correct order of conductivity ...

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  6. Which of the following is not true about the voids formed in 3 dimensi...

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  7. the value of magnetic moment is zero in the case of antiferromag...

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  8. which of the following statement are not true ?

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  9. which of the following statements are true about metals ?

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  10. under the influence of electric field , which of the following st...

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  11. which of the following statements are true about semiconductor ...

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  12. An excess of potassium ions makes KCL crystals appear violet or l...

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  13. the number of tetrahedral voids per unit cell in NaCl crystal is ...

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  14. Amorphous solids can also be callled ………….. .

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  15. A perfect crystal of silicon (fig) is deped with some elements a...

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  16. which of the following statements are correct ?

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  17. which of the following feastures are not shown by quartz glass ?

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  18. which of the following cannot regarded as molecular solid ?

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  19. in which of the following arrangement octahedral voids are formed...

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  20. Frenkel defect is also known as ……… .

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