Question

For the tetrahedral co-ordination, the radius ratio is :

• A. 0.155 - 0.225
• B. 0.225 - 0.414
• C. 0.414 - 0.732
• D. 0.732 - 1

Answer 1

Answer: (B)

For tetrahedral $0.225⩽\frac{r^{+}}{r^{-}}<0.414$