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If the anions (X) form hexagonal closed ...

If the anions (X) form hexagonal closed packing and cations (Y) occupy only 3/8th of octahedral voids in it, then the general formula of the compound is

A

`XY`

B

`YX_2`

C

`X_8 Y_3`

D

`X_3 Y_4`

Text Solution

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The correct Answer is:
C
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AAKASH INSTITUTE-MOCK TEST 15-Example
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  2. Which one of the following schemes of ordering closed packed sheets of...

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  3. If the anions (X) form hexagonal closed packing and cations (Y) occupy...

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  4. A solid is formed and it has three types of atoms X, Y, Z. X forms an ...

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

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  6. A crystal is made up of particles A. B and C. A forms fcc packing, B o...

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

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

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  9. The minimum distance between an octahedral and a tetrahedral void in f...

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

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

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

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

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

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  15. Which of the following statement is false ?

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

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

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

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

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

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