Question

Among the following species, identify the isostructural pairs:
$N{F}_3,N{O}_3^{-},B{F}_3,H_3{O}^{+},H{N}_3$

• A. $[N{F}_3,N{O}_3^{-}]and[B{F}_3,H_3{O}^{+}]$
• B. $[N{F}_3,H{N}_3]and[N{O}_3^{-},B{F}_3]$
• C. $[N{F}_3,H_3{O}^{+}]and[N{O}_3^{-},B{F}_3]$
• D. $[N{F}_3,H_3{O}^{+}]and[H{N}_3,B{F}_3]$

Answer 1

The correct option is C $[N{F}_3,H_3{O}^{+}]and[N{O}_3^{-},B{F}_3]$

$N{F}_3$ and $H_3{O}^{+}$ are having three bond pairs and one lone pair, thus have pyramidal structure. $B{F}_3$ and $N{O}_3^{-}$ exhibit trigonal planar structure.
$N_3^{-}$ show linear structure.