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When molten zinc is cooled to solid stat...

When molten zinc is cooled to solid state, it assumes HCP structure. Then the number of nearest neightbours of zinc atom will be

A

4

B

8

C

6

D

12

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The correct Answer is:
D
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AAKASH SERIES-SOLID STATE-LEVEL - I (EXERCISE - II)
  1. In the crystals of which of the following ionic compounds would you ex...

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  2. Gold crystallizes with a

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  3. When molten zinc is cooled to solid state, it assumes HCP structure. T...

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  4. Sodium crystallizes in a bcc lattice, hence the coordination number of...

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  5. The metal having 26% void space in its crystal structure is

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  6. The percentage of void space of a metallic element crystallising in a ...

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  7. A metal crystallises in a simple cubic unit cell of edge length 6.22 Å...

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  8. Sodium metal crystallises in a body-centred cubic lattice with the cel...

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  9. Copper crystallises in a f.c.c. lattice, the length of the unit cell i...

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  10. The radius of an atom of an element is 80 pm. If it crystallises as a ...

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  11. A metal has bcc structure and the edge length of its unit cell is 3.04...

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  12. If the radius of K^(+) and F^(-) are 133 pm and 136 pm respectively, t...

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  13. Schottky defect causes

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  14. What type of crystal defect is indicated in the diagram below  |{:(Na...

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  15. Schottky - Wagner defects are mostly found in

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  16. Which among the following is likely to have Schottky defect.

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  17. (A) : During vacancy defect the density of solid decreases (R): The ...

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  18. Schottky defect in crystals is observed when

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  19. {:("List - I","List - II"),("A) Crystal defect","1) Amorphous"),("B) C...

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  20. Which of the following is a ''Berthollide Compound''?

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