1.

Structure of a mixed oxide is cubic close-packed (ccp). The unit cell of mixed oxide is composed of oxide ions. One fourth of the tetrahedral voids are occupied by divalent metal A and the octahedral voids are occupied by a monovalent metal B. The formula of the oxide is

Answer»

`ABO_(2)`
`A_(2)BO_(2)`
`A_(2)B_(3)O_(4)`
`AB_(2)O_(2)`

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