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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 neighbours of zine atom will be

A

4

B

6

C

8

D

12

Text Solution

Verified by Experts

The correct Answer is:
D
The C.N. of spheres in hcp is 12
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DINESH PUBLICATION-SOLID STATE-multiple choice
  1. Schottky defect to crystals is observed when

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  2. A compound formed by elements A and B crystallises in a cubic structur...

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

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  4. What is the co-ordination number of sodium in Na(2)O ?

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  5. A compound formed by elements X and Y crystallises in a cubic structur...

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  6. The crystal system of a compound with unit cell dimensions a=0.387,b=0...

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  7. In a face centred cubic lattice unit cell is shared equally by how man...

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  8. If 'Z' is the number of atoms in the unit cell that represents the cl...

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

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  10. CsBr crystallises in a body- centred cubic lattice. The unit cell leng...

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  11. The Ca^(2+) and F^(-) ions arc located in CaF(2) crystal respectively ...

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  12. A particular solid is very hard and has a very high melting point.In s...

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  13. If NaCl is doped with 10^(-4)mol%of SrCl(2) the concentration of cati...

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  14. Percentage of free space in cubic in a body- centred cubic unit cell ...

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  15. Which of the following statements is not correct ?

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  16. If 'a' stands for the edge length of the cubic systems: simple cubic,b...

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  17. Lithium forms body centred cube structure .The length of the side of i...

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  18. Copper crystallises in fcc with a unit cell length of 361 pm. What is ...

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  19. Total no. of voids in 0.5 mole of a compound forming hexagonal closed ...

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  20. AB crystallizes in a body centred cubic lattice with edge length a equ...

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