Question

Which one of the following pairs is isostructural (i.e., having the same shape and hybridization)?

• A. $[ BCl_3$ and $BrCl_3^- ]$
• B. $[ NH_3$ and $NO_3^- ]$
• C. $NF_3$ and $BF_3$
• D. $[BF^{-}_{4}$ and $NH^{+}_4]$

Answer 1

Answer: (D)

$[BF^{-}_{4}$ and $NH^{+}_4]$

Answer 2

$BF _{4}^{-}$hybridisation $s p^{3}$, tetrahedral structure.
$NH _{4}^{+}$hybridisation $s p^{3}$, tetrahedral structure.