The incorrect statement regarding O(SiH_3)_2 | vedclass

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Question

(D) In $O(SiH_3)_2$,the lone pair on $O$ is donated to the vacant $3d$ orbital of $Si$ ($2p_{\pi}-3d_{\pi}$ back bonding). This is very effective,maki

Vedclass · Accepted Answer

Hybridisation of central $O$-atom in both molecules is same.

Vedclass · Answer

(D) In $O(SiH_3)_2$,the lone pair on $O$ is donated to the vacant $3d$ orbital of $Si$ ($2p_{\pi}-3d_{\pi}$ back bonding). This is very effective,making the $O$ atom $sp^2$ hybridized with a bond angle of $144^{\circ}$.In $OCl_2$,the $2p_{\pi}-3d_{\pi}$ back bonding is less effective due to the presence of lone pairs on $Cl$ atoms,which participate in $d$-orbital resonance. Thus,the $O$ atom remains $sp^3$ hybridized with a bond angle of $111^{\circ}$.Therefore,the statement that the hybridisation of the central $O$-atom in both molecules is the same is incorrect.

The incorrect statement regarding $O(SiH_3)_2$ and $OCl_2$ molecules is/are:

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