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.

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.

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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.