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A solid contains elements A and B. Anions of B form ccp lattice. Cations of A occupy 50% of octahedral voids and 50% of tetrahedral voids. What is the molecular formula of the solid?

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Always remember: Number of packing atoms = $N$ Octahedral voids = $N$ Tetrahedral voids = $2N$ The locations of these voids in an FCC cell are: OV at body center + edge centers; TV at body diagonals.

Updated On: Mar 26, 2026

$\text{AB}_3$
$\text{A}_3\text{B}_2$
$\text{A}_2\text{B}_3$
$\text{AB}$

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The Correct Option is B

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A solid contains elements A and B. Anions of B form ccp lattice. Cations of A occupy 50% of octahedral voids and 50% of tetrahedral voids. What is the molecular formula of the solid?

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The Correct Option is B

Solution and Explanation

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