question_answer

Identify the is structural pairs.

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

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

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

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

Correct Answer: C

Solution :

[c] : I so structural   pairs   have   similar structures.

\[N{{F}_{3}}\]		Triangular pyramidal
\[NO_{3}^{-}\]		Triangular planar
\[B{{F}_{3}}\]		Triangular planar
\[{{H}_{3}}{{O}^{+}}\]		Triangular pyramidal
\[H{{N}_{3}}\]		Linear

Thus, iso structural pairs are \[[N{{F}_{3}},{{H}_{3}}{{O}^{+}}]\] and \[[NO_{3}^{-},B{{F}_{3}}]\].