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.


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