Which of the following pairs of species are n | vedclass

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(B) To determine if species are isostructural,we check their hybridization and geometry:$1$. $PF^{-}_6$ ($sp^3d^2$,octahedral) and $SF_6$ ($sp^3d^2$,o

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$SiF_4$ and $SF_4$

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(B) To determine if species are isostructural,we check their hybridization and geometry:$1$. $PF^{-}_6$ ($sp^3d^2$,octahedral) and $SF_6$ ($sp^3d^2$,octahedral) are isostructural.$2$. $SiF_4$ ($sp^3$,tetrahedral) and $SF_4$ ($sp^3d$,see-saw shape) are not isostructural.$3$. $IO^{-}_3$ ($sp^3$,pyramidal) and $XeO_3$ ($sp^3$,pyramidal) are isostructural.$4$. $BH^{-}_4$ ($sp^3$,tetrahedral) and $NH^{+}_4$ ($sp^3$,tetrahedral) are isostructural.Thus,the pair $SiF_4$ and $SF_4$ is not isostructural.

Column-$I$	Column-$II$ (Shape)
$A$. $SF_4$	$1$. Tetrahedral
$B$. $BrF_3$	$2$. Pyramidal
$C$. $BrO_3^-$	$3$. See-Saw shaped
$D$. $NH_4^+$	$4$. Bent $T$-shaped

Which of the following pairs of species are not isostructural?

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Match the species given in Column-$I$ with the shape given in Column-$II$ and mark the correct option:-

Column-$I$ Column-$II$ (Shape)

$A$. $SF_4$ $1$. Tetrahedral

$B$. $BrF_3$ $2$. Pyramidal

$C$. $BrO_3^-$ $3$. See-Saw shaped

$D$. $NH_4^+$ $4$. Bent $T$-shaped

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