InterviewSolution
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InterviewSolution
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A solid AB has the NaCL structure, If radius of cation `A^(+)` is 120 pm, calculate the maximum possible value of the radius of the anion `B^(-)` |
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Answer» We know for the NaCl structure, for maximum of radius of `B^(-)`, the ratio `r^(+)//r^(-)` should be minimum for octahedral voild i.e., 0.414. Radius of cation/radius of anion = 0.414 `(r_(A))/(r_(B)) = 0.414 rArr r_(B) = (r_(A))/(0.414) = (120)/(0.414) = 290` pm. |
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