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1. |
The order of magnitude of ionic radii of ions \[N{{a}^{+}},M{{g}^{2+}},A{{l}^{3+}}\] and \[S{{i}^{4+}}\] is [MP PMT 1996] |
A. | \[N{{a}^{+}}<M{{g}^{2+}}<A{{l}^{3+}}<S{{i}^{4+}}\] |
B. | \[M{{g}^{2+}}>N{{a}^{+}}>A{{l}^{3+}}>S{{i}^{4+}}\] |
C. | \[A{{l}^{3+}}>N{{a}^{+}}>S{{i}^{4+}}>M{{g}^{2+}}\] |
D. | \[N{{a}^{+}}>M{{g}^{2+}}>A{{l}^{3+}}>S{{i}^{4+}}\] |
Answer» E. | |