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A crystal is made of particles X,Y and Z.X form fcc packing . Y occupies all the octahedral void of X and Z occupies all the tetrahedral voids of X . If all the particles along one body diagonal are removed then the formula of the crystal would be:

A

`ABC_2`

B

A_2 B C_2

C

A_8 B_4 C_5

D

`A_5 B_4 C_8`

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The correct Answer is:
D
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AAKASH INSTITUTE ENGLISH-MOCK TEST 15-Example
  1. A solid is formed and it has three types of atoms X, Y, Z. X forms an ...

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  2. The two ions A^+ and B^- have radii 40 pm and 120 pm respectively. In ...

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  3. A crystal is made of particles X,Y and Z.X form fcc packing . Y oc...

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  4. The number of nearest neighbours of each atom in cubic close packing (...

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  5. Minimum distance between two tetrahedral voids if a is the edge length...

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  6. The distance between an ocatahral and tetrahedral void in fcc lat...

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  7. You are given 6 identical balls . The maximum number of square voids a...

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  8. The number of octahedral voids in case of hcp unit cell is

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  9. The number of nearest neighbours of each sphere in hexagonal closed pa...

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  10. In an arrangement of type ABABA .... identical atoms of first layer ( ...

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  11. Given an alloy of Cu, Ag and Au in which Cu atoms constitute the ccp a...

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  12. Which of the following statement is false ?

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  13. A TV in fcc is formed by atoms at

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  14. Relationship between atomic radius and the edge length a of a body-cen...

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  15. The fraction of the total volume occupied by the atoms present in a si...

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  16. In a close packed structure of mixed oxides , the lattice is composed ...

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  17. An ionic solid A^(o+)B^(Θ) crystallizes as an bcc structure. The dist...

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  18. In a metal M having bcc arrangement edge length of the unit cell is 40...

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  19. A compound XY crystallizes in BCC lattice with unit cell - edge length...

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  20. What are the number of atoms per unit cell and the number of nearest n...

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