BITSAT2022ChemistrySolid StateActual

Which compound has antifluorite structure?

Options

AMnO ₄
BNa ₂ O
CNa ₂ O ₂
DLi ₂ O ₂

Correct answer

B. Na ₂ O

Step-by-step solution

Anti-fluorite structure refers to an anion array with tetrahedral cations and the compound having A₂ B formula have anti-fluorite structure. So, Na ₂ O has an anti-fluorite structure in which Na ⁺ ions occupy all the tetrahedral voids and O ²⁻ occupy half of the cubic holes.

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