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In fcc , a tetrahedral void is formed by...

In fcc , a tetrahedral void is formed by atoms at

A

3 corners and 1 face centre

B

3 face centres and 1 corner

C

2 face centres and 2 corners

D

2 face centres , 1 corner and 1 body centre

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The correct Answer is:
B
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AAKASH INSTITUTE-MOCK TEST 15-Example
  1. The number of nearest neighbours of each sphere in hexagonal closed pa...

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

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

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  4. Which of the following statement is false ?

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  5. In fcc , a tetrahedral void is formed by atoms at

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  6. The relation between atomic radius ( r ) and edge length ( a ) a face ...

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  7. The fraction of the total volume occupied by atoms in a simple cube is

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

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  9. An ionic solid AB crystallizes as a bcc structure . The distance betwe...

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

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

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

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  13. An element crystallizes in a fcc lattice and the edge length of the un...

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  14. An element X ( molar mass = 80 g / mol ) having fcc structure , calcul...

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  15. Molybdenum ( molar mass 96 g crystallizes as bcc crystal . If density...

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  16. The coordination number of a metal crystallising a hcp structure is

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  17. The unit cell present in ABCABC closed packing of atoms is

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  18. The atomic radius of strontium ( Sr ) is 215 pm and it crystallizes in...

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  19. If the density of crystalline CsCI is 3.988 g cm^-3 , calculate the vo...

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  20. A binary solid ( AB ) has a rock salt structure . If the edge length i...

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