Chemistry · 2021
JEE Main · 18 March 2021, Shift 1 · Q34
The ionic radius of Na^+ ion is 1.02. The ionic radii (in ) of Mg^2+ and Al^3+, respectively, are:
The ionic radius of $\displaystyle \mathrm{Na}^{+}$ ion is $\displaystyle 1.02 \AA$. The ionic radii (in $\displaystyle \AA$ ) of $\displaystyle \mathrm{Mg}^{2+}$ and $\displaystyle \mathrm{Al}^{3+}$, respectively, are:
Official answer
(2)
0.$\displaystyle 72$ and $\displaystyle 0.54$
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JEE Main 2021 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.