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The tetrahedral voids formed by cup arra...

The tetrahedral voids formed by cup arrangement of `CI^(-)` ions in rock salt structure are

A

Occupied by `Na^(+)` ions

B

Occupied by `CI^(-)` ions

C

Occupied by either `Na+ or CI^(-)` ions

D

Vacant

Text Solution

Verified by Experts

The correct Answer is:
d
In rock salt stracture `CI^(-)` form (ccf) lattice and `Na^(+)` occupies octahdral voids so tertahedral volid are vacant.
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A2Z-SOLID STATE-Structure, Coordination Number, Radious Ratio Rule, Density Of Unit Cell
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  2. The radius ofAg ion is 126 pm and that of I - ion is 216 pm .The coor...

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  3. The tetrahedral voids formed by cup arrangement of CI^(-) ions in rock...

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  4. An element X (At,wt = 80 g//mol) having fcc structure, calculate the n...

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  5. In which of the following 8 :8 coordination is found?

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  6. For some crystals , the radius ratio for cation and anion is 0.525 its...

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  7. In solid oxide are arranged in cup .One - sixth of tetrabedral voids a...

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  8. Which of the following expressions is correct in the case of a sodium ...

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  9. An element (atomic mass = 100 g//mol) having bcc structure has unit ce...

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  10. MgO exists in a rock- salt type unit cell .Each Mg^(+2) ion will be is...

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  11. An AB(2) type structure is found in

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  12. Cesium chloried on heating to 760 K changes in

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  13. The figure below shown a unit cell of the mineral perovskite (the tita...

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

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  15. A group IV A element with a density of 11.35 g//cm^(3) crystallises in...

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  16. Select the incorrect statement for CsCI crystal

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  17. For cubic - coordination the value of ratio is

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  18. For unit cell of a NaCI lattice

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  19. How many molecules are there in the unit cell of sodium chioride?

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  20. The number of atoms in 100 g of an fcc crystal with density = 10.0g cm...

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