Among the following species, identify the isostructural pairs :\ $\mathrm{NF}_{3}, \mathrm{NO}_{3}^

Question

Among the following species, identify the isostructural pairs :\ $\mathrm{NF}_{3}, \mathrm{NO}_{3}^{-}, \mathrm{BF}_{3}, \mathrm{H}_{3} \mathrm{O}^{+}, \mathrm{NH}_{3}$\

Professor PC Thomas Classes · Answer

(c):Isostructural compounds have same type of hybridisation.\ In $\mathrm{NF}_{3}, \mathrm{~N}$ is $s p^{3}$ hybridised ( 3 b.p. +1 l.p.)\ In $\mathrm{NO}_{3}^{-} ; \mathrm{N}$ is $s p^{2}$ hybridised.\ In $\mathrm{BF}_{3}$; B is $s p^{2}$ hybridised.\ In $\mathrm{H}_{3} \mathrm{O}^{+}$; O is $s p^{3}$ hybridised.\ In $\mathrm{HN}_{3}$; central nitrogen is $s p$ hybridised.\ From this we find that $\mathrm{NF}_{3}$ and $\mathrm{H}_{3} \mathrm{O}^{+}$are isostructural and $\mathrm{BF}_{3}$ and $\mathrm{NO}_{3}^{-}$are isostructural.\