MCQ
Increasing order of ionic size for the ions, $F^-, O^{2-},Na^+, Al^{3+}$ is :-
- A$O^{2-} < F^-< Na^+ < Al^{3+}$
- ✓$Al^{3+} < Na^+ < F^-< O^{2-}$
- C$O^{2-} < Na^+ < F^-< Al^{3+}$
- D$Al^{3+} < F^-< Na^+ < O^{2-}$
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$A$. $\mathrm{Be} \rightarrow \mathrm{Be}^{-}$
$B$. $\mathrm{N} \rightarrow \mathrm{N}^{-}$
$C$. $\mathrm{O} \rightarrow \mathrm{O}^{2-}$
$D$. $\mathrm{Na} \rightarrow \mathrm{Na}^{-}$
$E$. $\mathrm{Al} \rightarrow \mathrm{Al}^{-}$
Choose the most appropriate answer from the options given below :