Chemistry - CHEMICAL BONDING Question with Solution | TestHub

The printed B, SiH₃NCS, is polar and has pπ-pπ overlap in its N=C=S chain. POF₃ is described in the source's classical convention with phosphorus pπ-dπ interaction. NOF₃ would overfill nitrogen's octet in the proposed ordinary structure. CCl₃⁻ has no adjacent π-bond framework of the specified kind. Thus B under the bonding model used by the source; the pπ-pπ statement is not a claim that silicon d orbitals dominate all Si-N bonding.