Question

In which of the following pairs, the two species are not isostructural?

• A. $C{O}^{2-}3$ and, $N{O}_3^{-}$
• B. $PC{l}_4^{+}$ and $SiC{l}_4$
• C. $P{F}_5$ and $Br{F}_5$
• D. $Al{F}_6^{3-}$ and $S{F}_6$

Answer 1

Answer: (C)

(a)	$C{O}_3^{2-},N{O}_3^{-}$	Triangular planar
(b)	$PC{l}_4^{+},SiC{l}_4$	Tetrahedral
(c)	$P{F}_5,Br{F}_5$	Trigonal bipyramidal
(d)	$Al{F}_6^{3-},S{F}_6$	Square pyramidal
		Octahedral