Question

Which of the following are isoelectronic and isostructural ?
$N{O}_3^{-}$, $C{O}_3^{2-}$, $Cl{O}_3^{-}$, $S{O}_3$

• A. $N{O}_3^{-}$, $C{O}_3^{2-}$
• B. $S{O}_3$, $N{O}_3^{-}$
• C. $Cl{O}_3^{-}$, $C{O}_3^{2-}$
• D. $C{O}_3^{2-}$, $S{O}_3$

Answer 1

Answer: (A)

$N{O}_3^{-}$ and $C{O}_3^{2-}$ both have 32 electrons, central atom ${sp}^2$ hybridised, triangular planar.