Punjab Medical Punjab - MET Solved Paper-2010

  • question_answer
    For tetrahedral coordination, the radius ratio \[({{r}^{+}}/{{r}^{-}})\]should be

    A) \[0.155-0.225\] 

    B) \[0.225-0.414\]

    C) \[0.414-0.732\] 

    D) \[0.732-1\]

    Correct Answer: B

    Solution :

    Radius ratio\[\mathbf{(}{{\mathbf{r}}^{\mathbf{+}}}\mathbf{/}{{\mathbf{r}}^{\mathbf{-}}}\mathbf{)}\] Structural arrangement
    0.155 - 0.225 0.225 - 0.414 0.414 - 0.732 0.732 - 1.0 Trigonal planar Tetrahedral Octahedral Cubic


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