question_answer

Among the following species, identify the isostructural pairs: \[N{{F}_{3}},\text{ }NO_{3}^{-},\text{ }B{{F}_{3}},\text{ }{{H}_{3}}{{O}^{+}},\text{ }H{{N}_{3}}\]

A)  \[[N{{F}_{3}},NO_{3}^{-}]\]and\[[B{{F}_{3}},{{H}_{3}}{{O}^{+}}]\]

B) \[[N{{F}_{3}},H{{N}_{3}}]\]and \[[NO_{3}^{-},B{{F}_{3}}]\]

C) \[[N{{F}_{3}},{{H}_{3}}{{O}^{+}}]\]and \[[NO_{3}^{-},B{{F}_{3}}]\]

D)  \[[N{{F}_{3}},{{H}_{3}}{{O}^{+}}]\]and\[[H{{N}_{3}},B{{F}_{3}}]\]

Correct Answer: C

Solution :

                \[N{{F}_{3}}\] Hybridisation: \[s{{p}^{3}}\] Structure      : Pyramidal \[NO_{3}^{-}\]                  Hybridisation : \[s{{p}^{2}}\] Structure      : Trigonal planar \[{{H}_{3}}{{O}^{+}}\]                    Hybridisation : \[s{{p}^{2}}\] Structure      : Trigonal planar \[{{H}_{3}}{{O}^{+}}\]                    Hybridisation : \[s{{p}^{3}}\] Structure      : Pyramidal \[H{{N}_{3}}\]                   Hybridisation : \[sp\] Structure      : Linear