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Chemistry · 2018
JEE Main · 15 April 2018, Shift 1 · Q41
For Na^+, Mg^2+, F^- and O^2-; the correct order of increasing ionic radii is:
For $\displaystyle \mathrm{Na}^{+}, \mathrm{Mg}^{2+}, \mathrm{F}^{-}$and $\displaystyle \mathrm{O}^{2-}$; the correct order of increasing ionic radii is :
Official answer
(3)
$\displaystyle \mathrm{Mg}^{2+}<\mathrm{Na}^{+}<\mathrm{F}^{-}<\mathrm{O}^{2-}$
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JEE Main 2018 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.