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

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(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

Vedclass · Accepted Answer

If both the Assertion and Reason are incorrect.

Vedclass · Answer

(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.

Similar Questions

Consider the following reaction:
$2Se_2Cl_2 \to 3Se + SeCl_4$
Choose the $CORRECT$ option regarding the product $SeCl_4$ (referred to as $A$ in the options).

According to the Valence Shell Electron Pair Repulsion $(VSEPR)$ theory,what is the shape of $ClO_3^-$?

$BCl_3$ is a planar molecule while $NCl_3$ is pyramidal,because

The number of bent-shaped molecule/s from the following is $.....$. $N_3^{-}$,$NO_2^{-}$,$I_3^{-}$,$O_3$,$SO_2$

$A$ covalent molecule $AB_{3}$ has a pyramidal structure. The number of lone pairs and bond pairs of electrons in the molecule are respectively:

Vedclass Test Series

Exam Paper Generator

Online Exam Module

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.