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NEET2006ChemistrySolid StateActual

The Ca ²⁺ and F ⁻ are located in CaF ₂ crystal, respectively at face centred cubic lattice points and in

Options

  1. Atetrahedral voids
  2. Bhalf of tetrahedral voids
  3. Coctahedral voids
  4. Dhalf of octahedral voids.

Correct answer

A. tetrahedral voids

Step-by-step solution

In CaF ₂ crystal, the Ca ²⁺ ions are present at all corners and at the centre of each face of the cube and the F ⁻ ions occupy all the tetrahedral sites.

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