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Which of the following orders of ionic radii is correctly represented?
(a) \( \mathrm{H}^{-}\mathrm{H}^{+}\mathrm{H} \)
(b) \( \mathrm{Na}^{+}\mathrm{F}^{-}\mathrm{O}^{2-} \)
(CBSE 2014)
(c) \( \mathrm{F}^{-}\mathrm{O}^{2-}\mathrm{Na}^{+} \)
(d) \( \mathrm{Al}^{3+}\mathrm{Mg}^{2+}\mathrm{N}^{3-} \)
P
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