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Which of the following about the above s...

Which of the following about the above structure is not correct ?

A

It has ccp structure

B

Each X ion in surrounded by eight Y ions

C

The structure is similar to diamond

D

X ions are present at the corners of the cube and centre of each face.

Text Solution

Verified by Experts

The correct Answer is:
B
Each X ion is surrounded by 4 Y ions.
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NCERT FINGERTIPS-THE SOLID STATE -Number Of Atoms In Unit Cell And Close Packed Structures
  1. Match the column I with Column II and mark the appropriate choice .

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  2. IF the radius ratio of cation to anion is in the range of 0.2...

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  3. A crystal lattice with alternate +ve "and "-veions has radius ratio o...

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  4. A solid AB has the NaCL structure, If radius of cation A^(+) is 120 pm...

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  5. A crystal is formed by two elements X and Y in cubic structure. X atom...

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  6. If there elements X, Y & Z crystallize in cubic solid lattice with X- ...

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  7. A compound formed by two elements M and N. Element N forms ccp and ato...

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  8. A cubic solid is made up iof two elements X and Y . Atoms Y are presen...

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  9. How many chloride ions are there around sodium ion in sodium chloride ...

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  10. In NaCl structure , all the :

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  11. 8:8 coordination of CsCl is found to change into 6:6 coordination :

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  12. In CsCI lattice the coordination number of Cs ion is

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  13. Which is /are correct statement about zinc blende structure ?

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  14. The unit cell shown in the figure belongs to

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  15. The coordination number of Y will be

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  16. Which of the following about the above structure is not correct ?

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  17. In CaF(2) type (fluorite structure) Ca^(2+) ions form W structure and ...

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  18. Which of the following statements is not true ?

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  19. A unit cell of BaCl2 (fluorite structure) is made up of

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  20. Which of the following structures is not correctly matched ?

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