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An ionic compound has a unit cell consisting of A ions at the corners of a cube and B ions on the centres of the faces of the cube. The empirical formula for this compound would be

Options

  1. AA ~B
  2. BA ₂ ~B
  3. CA ~B ₃
  4. DA ₃ ~B

Correct answer

C. A ~B ₃

Step-by-step solution

A= 1 8 8=1 (Corner) B = 1 2 6=3 (Face centre) AB ₃

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