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In the spinel structur, oxides ions are ...

In the spinel structur, oxides ions are cubical-closet packed whereas 1/8th of tetrahedral voids are occupied by `A^(2+)` cation and 1/2 of octahedral voids are occupied by `B^(+)` cations. The general formula of the compound having spinel structure is:

A

`A_2BO_4`

B

`AB_2O_4`

C

`A_2B_4O`

D

`A_4B_2O`

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In a solid, oxide ions are aranged in ccp. One sixth of the tetrahedral voids and occupied by the cations A and one third of the octahedral voids and occupied by the cations B. what is the formula of the compound?

In a normal spinel structure O^(2-) ions form fcc packing and 1/8 of the tetrahedral sites are occupied by divalent metal, A^(2+) ions and half of the octahedral sites are occupied by trivalent metal B^(3+) ions, what is the ratio of the tetrahedral/octahedral sites: occupied in spinel structure.

In a cubic close packed structure of mixed oxides, the lattice is made up of oxide ions, one eigth of the tetrahedral voids are occupied by divalent ions (A^(2+)) while one half of octrahedral voids are occupied by trivalent ions (B^(3+)) . What is the formula of the oxide?

If the anion (A) form hexagonal closet packing and cation (C ) occupy only 2/3 octahedral voids in it, then the general formula of the comound is:

In a solid, oxide ions are arrnged in ccp, cations A occupy A occupy (1/8)^th of the tetrahedral voids and cation B occupy (1/4)^(th) of the octahedral voids. The formula of the compound is:

In a crystalline solid, anions Y^- are arranged in ccp. Cation X^+ are equally distributed between octahedral and tetrahedral voids. If all the octahedral voids are occupied, what is the formula of the compond?

How many octahedral voids are there are in 1 mole of a compound having cubic closed packed structure?

A spinel is an important class of oxide consisting two types of metal ions with the oxide ions arranged in ccp layers . The normal spinel has one -eight of the tetrahedral holes occupied by one type of metal ions and one- half of the octahedral holes occupied by another type of metal ion. Such a spinel is formed by Mg^(2+), Al^(3+) and O^(2-) . The neutrality of the crystal is being maintained. The formula of the spinel is :

A spinel is an important class of oxide consisting two types of metal ions withs the oxide ions arranged in ccp layers . The normal spinel has one -eight of the tetrahendral holes occupied by one type of metal ions and one- half of the octaherdral holes occupied by another type of metal ion. Such a spine is formed by Mg^(2+), Al^(3+) and O^(2-) . The netutrality of the crystal is benig maintained. Type of hole occupied by Al^(3+) ions is:

MODERN PUBLICATION-SOLID STATE-EXERCISE
  1. The packing fraction for a body centred cube is

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  2. In the body centered cubic unit cell and simple unit cell, the radius...

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  3. In the spinel structur, oxides ions are cubical-closet packed whereas ...

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  4. The most unsysmmetrical and symmeterical systems are, respectively:

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  5. The unit cell with parameter alpha=beta=gamma=90^(@) and a=b ne c is

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  6. The number of atoms present in a hexagonal close-packed unit cell is:

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  7. In corrundum, oxide ions are arranged in hcp arrangement and the alumi...

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  8. A minetal of titanium is found to contain calcium ions at the corners,...

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  9. The number of tetrahedral and octahedral holes in a hexagonal primitiv...

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  10. In an atomic bcc lattie what fraction of edge is not covered by atom...

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  11. A Metal crystallizes in fcc lattice and the edge of the unit cell is 6...

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  12. In which of the following structures, the anion has maximum coordinati...

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  13. In a face centered cubic arrangement of A and B atoms whose A atoms ar...

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  14. In which of the following pair, both the crystals are not of the same ...

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  15. Which of the following statements is not true about crystalline solids...

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  16. What is the ratio by mass of Na and Cl in sodium chloride (NaCl) ?

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  17. The crystal system of a compound with unit cell dimensions alpha=0.387...

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  18. If three elements P, Q and R crystalline in a cubic solid lattice with...

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  19. An element crystallize in fcc lattice and edge length of unit cell is ...

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  20. How many orbitals are present in f subshell.

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