In ${CaF}_2$, fluorite type structure, ${F}^{-}$ions occupy

All the octahedral voids + half of tetrahedral voids

JEE CHEMISTRY MCQ: SOLID STATE

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{CaF}_2

, fluorite type structure,

{F}^{-}

ions occupy

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Correct option: A

All the tetrahedral voids

Option A (All the tetrahedral voids) is correct because in the CaF2 fluorite structure, Ca2+ ions form the ccp lattice and F- ions occupy all the tetrahedral voids.

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