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the correct order of the packing eff...

the correct order of the packing effeciency in different types of unit cells is ……….. .

A

fccltBcclt simple cubic

B

fccgt bcc gt simple cubic

C

fcclt bcc? Simple cubic

D

bcclt fccgt simple cubic

Text Solution

Verified by Experts

The correct Answer is:
B
packing efficiency in different types of unit cells can be tabulated as

Hence , correct is fcc ( 74% ) gt bcc (68% )gt simple cubic (52% ).
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NCERT EXEMPLAR-SOLID STATE-Solid State
  1. which of the following is not true about the ionic solids ?

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  2. A ferromagnetic substance becomes a permanent magnet when it is placed...

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  3. the correct order of the packing effeciency in different types o...

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

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

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

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

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

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

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  10. which of the following statement are not true ?

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

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

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

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

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

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

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

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  18. which of the following statements are correct ?

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

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

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