In a solid crystal of a mixed oxide, the oxide ions constitute ccp lattice. Element 'A' occupy half β AITS & Test Series Chemistry Question
Question
In a solid crystal of a mixed oxide, the oxide ions constitute ccp lattice. Element 'A' occupy half of the octahedral voids while the element 'B' occupy 12.5% of tetrahedral voids. The formula of the oxide isβ¦β¦.?

Answer: C
π‘ Solution & Explanation
Oxide ions constitute ccp means fcc unit cells, i.e. Number of oxide ions per unit cell = 4 Number of βAβ per unit cell 4 2 2 ο½ ο½ (As βAβ occupy half of the octahedral voids) Number of βBβ, per unit cell
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