Assertion : All F-S-F angles in SF_4 are grea | vedclass

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(D) $SF_4$ has a see-saw molecular geometry with $sp^3d$ hybridization. It contains one lone pair on the sulfur atom.According to $VSEPR$ theory,the r

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If both the Assertion and Reason are incorrect.

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(D) $SF_4$ has a see-saw molecular geometry with $sp^3d$ hybridization. It contains one lone pair on the sulfur atom.According to $VSEPR$ theory,the repulsion order is $lp-lp > lp-bp > bp-bp$.The lone pair occupies an equatorial position to minimize repulsion. This lone pair exerts a strong repulsion on the adjacent bond pairs,causing the equatorial $F-S-F$ bond angle to decrease from $120^\circ$ to approximately $101^\circ$ and the axial $F-S-F$ bond angle to decrease from $180^\circ$ to approximately $173^\circ$.The other $F-S-F$ bond angle is approximately $89^\circ$.Since one of the bond angles $(89^\circ)$ is less than $90^\circ$,the Assertion is incorrect.The Reason is also incorrect because $lp-bp$ repulsion is actually stronger than $bp-bp$ repulsion.

List-$I$ (Compound / Species)	List-$II$ (Shape / Geometry)
$A$. $SF_4$	$I$. Tetrahedral
$B$. $BrF_3$	$II$. Pyramidal
$C$. $BrO_3^{-}$	$III$. See-saw
$D$. $NH_4^{+}$	$IV$. Bent $T$-shape

Assertion : All $F-S-F$ angles in $SF_4$ are greater than $90^\circ$ but less than $180^\circ$.
Reason : The lone pair-bond pair repulsion is weaker than bond pair-bond pair repulsion.

Similar Questions

Which of the following compounds have the number of lone pairs on the central $Xe$ atom equal to zero?
$XeO_{3}, XeO_{2}F_{2}, XeO_{4}, XeO_{3}F_{2}, Ba_{2}XeF_{4}$

In a regular octahedral molecule,$MX_6$,the number of $X-M-X$ bonds at $180^{\circ}$ is

Match List-$I$ with List-$II$ :

List-$I$ (Compound / Species) List-$II$ (Shape / Geometry)

$A$. $SF_4$ $I$. Tetrahedral

$B$. $BrF_3$ $II$. Pyramidal

$C$. $BrO_3^{-}$ $III$. See-saw

$D$. $NH_4^{+}$ $IV$. Bent $T$-shape

Choose the correct answer from the options given below :

The shape of the $XeF_2$ molecule is ..........

Which of the following is the correct order of bond angle?

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Assertion : All $F-S-F$ angles in $SF_4$ are greater than $90^\circ$ but less than $180^\circ$.Reason : The lone pair-bond pair repulsion is weaker than bond pair-bond pair repulsion.