For tetrahedral coordination number, the radius ratio \[\frac{{{r}_{{{c}^{+}}}}}{{{r}_{{{a}^{-}}}}}\] is [KCET 2000]

For tetrahedral coordination number, the radius ratio \[\frac{{{r}_{{{

1.	For tetrahedral coordination number, the radius ratio \[\frac{{{r}_{{{c}^{+}}}}}{{{r}_{{{a}^{-}}}}}\] is [KCET 2000]
A.	\[0.732-1.000\]
B.	\[0.414-0.732\]
C.	\[0.225-0.414\]
D.	\[0.155-0.225\]
Answer» D. \[0.155-0.225\]

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For tetrahedral coordination number, the radius ratio \[\frac{{{r}_{{{c}^{+}}}}}{{{r}_{{{a}^{-}}}}}\] is [KCET 2000]

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