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The correct arrangement for the ions in the increasing order of their radius is :
(Karnataka CET 2014)
\( \mathrm{P} \)
(a) \( \mathrm{Na}^{+}, \mathrm{Cl}^{-}, \mathrm{Ca}^{2+} \)
(b) \( \mathrm{Ca}^{2+}, \mathrm{K}^{+}, \mathrm{S}^{2-} \)
W
(c) \( \mathrm{Na}^{+}, \mathrm{Al}^{3+}, \mathrm{Be}^{2+} \)
(d) \( \mathrm{Cl}^{-}, \mathrm{F}^{-}, \mathrm{S}^{2-} \)
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