Question -
If the value of ionic radius ratio (rcra) is 0.52 in an ionic compound, the geometrical arrangement of ions in crystal is
Options:
A .  Tetrahedral
B .  Planar
C .  Octahedral
D .  Pyramidal
Answer: Option C : C The value of ionic radius ratio is 0.52 which is between 0.414 – 0.732 then the geometrical arrangement of ions in crystal is octahedral.
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