$1.05$ and $0.99$
$0.72$ and $0.54$
$0.85$ and $0.99$
$0.68$ and $0.72$
Correct Option: 2,
The ionic radii order is
$\mathrm{Na}^{+}>\mathrm{Mg}^{2+}>\mathrm{Al}^{3+}$
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