Chemistry · 2020
JEE Main · 5 September 2020, Shift 2 · Q33
The correct order of the ionic radii of O^2-, N^3-, F^-, Mg^2+, Na^+ and Al^3+ is:
The correct order of the ionic radii of $\displaystyle \mathrm{O}^{2-}, \mathrm{N}^{3-}, \mathrm{F}^{-}, \mathrm{Mg}^{2+}, \mathrm{Na}^{+}$and $\displaystyle \mathrm{Al}^{3+}$ is :
Official answer
(2)
$\displaystyle \begin{aligned}
& \mathrm{Al}^{3+}<\mathrm{Mg}^{2+}<\mathrm{Na}^{+}<\mathrm{F}^{-}<\mathrm{O}^{2-}< \\
& \mathrm{N}^{3-}
\end{aligned}$
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JEE Main 2020 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.