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In which of the following crystals, alte...

In which of the following crystals, alternate tetrahedral voids are occupied?

A

NaCl

B

ZnS

C

`CaF_2`

D

`Na_2O`

Text Solution

Verified by Experts

The correct Answer is:
B
In ZnS structure , sulphide `(S^(2-))` ions occupy all (fcc) lattice points while `Zn^(2+)` ions are present in alternate tetrahedral sites .
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-SOLID STATE-EXERCISE 1
  1. Total no. of voids in 0.5 mole of a compound forming hexagonal closed ...

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  2. Point out the correct statement for the set of characteristics of ZnS ...

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  3. In which of the following crystals, alternate tetrahedral voids are oc...

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  4. The ionic radii of Rb^(+) and I^(-) are 1.46 and 2.16Å. The most proba...

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  5. A solid is formed by two elements P and Q . The element Q forms cubic ...

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  6. Match the following

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  7. The cubic unit cell of a metal (molar mass= 63.55 "mol"^(-1)) has an e...

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  8. Xenon crystallizes in the face-centred cubic lattice and the edge of t...

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  9. How many unit cells are present in a cube-shaped crystal of NaCl of ma...

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  10. The pyknometric density of sodium chloride crystal is 2.165xx10^(3)kg ...

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  11. The molar volume of KCl and NaCl are 37.46 mL and 27.94mL respectively...

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  12. Nickle crystallise in a fcc unit cell with a cell edge length of 0.352...

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  13. Iron crystallises in a bcc system with a lattice parameter of 2.861 Å....

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  14. An element having an atomic radius of 0.14 nm crystallises in a fcc un...

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  15. a metal crystallizes with a face-centered cubic lattice.The edge of th...

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  16. AB crystallises in a bcc lattice with edge length qa equal to 387 pm.T...

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  17. A metal crystallises in a bcc lattice ,its unit cell edge length in ab...

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

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  19. Aluminium has fcc structure. The length of the unit cell is 409 pm. I...

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

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