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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_(2)B_(2)O_(4)`

B

`AB_(2)O_(4)`

C

`A_(2)B_(2)O_(2)`

D

`A_(4)B_(2)O_(2)`

Text Solution

Verified by Experts

The correct Answer is:
B
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A spinel is an important class of oxides consising of two types of metal ions with the oxide ions arranged in cop layers. The normal spinel has one-eigth of the tetrahedral holes occupied by one type of metal ion and one-half of the octahedral holes occupied by another type of metal ion. Such a spinel is formed by Mg^(2+), A^(2+) and O^(2-) . The neutratrality of the crystal is maintained. Type of hole occupied by Mg^(2+) ions is

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