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In the calcum fluaride structure, the co...

In the calcum fluaride structure, the coordination bumber of the cations and anions are respectively ,

A

6 and 6

B

8 and 4

C

4 and 4

D

4 and 8

Text Solution

Verified by Experts

The correct Answer is:
B
`Ca^(2+)` ion is contact with eight `F^(-)` ions and `F^(-)` ion and is in contact with four `Ca^(2+)` ions
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DINESH PUBLICATION-SOLID STATE-Straight objective
  1. The material used in solar cells contains

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  2. In the calcum fluaride structure, the coordination bumber of the catio...

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  3. A metallic crystal cystallizes into a lattice containing a sequence of...

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  4. The cordination number of a metal crystallising in a hexagonal close-p...

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  5. In a solid AB having the NaCl structure, A atom occupies the corners o...

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  6. A substance A(x)B(y) crystallises in a face centred cubic (fcc) latti...

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  7. The packing efficiency of the two dimensional square unit cell shown b...

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  8. A compound M(p)X(q) has cubic close packing (ccp) arrangement of X. It...

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  9. The arrangement of X^(ɵ) ions around A^(o+) ion in solid AX is given i...

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  10. In the closest packing of atoms

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  11. Incorrect option (s) about NaCl structure is/are

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  12. CsCl structure is interchanged into NaCl structure. This can be done b...

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  13. Which of the following statements are correct ?

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  14. Glasses and plastics are

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  15. Which is true ? If radius ratio r^(+)//r^(-)

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  16. Which is true

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  17. Which of the following are not the characteristics of crystalline soli...

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  18. Choose the correct statements out of the following

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  19. Which of the following statements are correct ?

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  20. The corrent statement regarding defects is solids in solids is

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