For Be₂, C₂, N₂, O₂, F₂ in standard MO orderings, let X count species whose HOMO and LUMO are both bonding or both antibonding. Use frontier SUBSHELLS: a partially occupied degenerate subshell supplie

Question

For Be₂, C₂, N₂, O₂, F₂ in standard MO orderings, let X count species whose HOMO and LUMO are both bonding or both antibonding. Use frontier SUBSHELLS: a partially occupied degenerate subshell supplies its own unoccupied spin state. Let Y count fully planar species among BF₃, BrF₃, SF₆, NH₃, ICl₂⁻, CH₄. Find X/Y.

TestHub · Accepted Answer

C₂ has bonding π HOMO and bonding σ LUMO; O₂ has the partly occupied antibonding π* frontier subshell; F₂ has π* HOMO and σ* LUMO. Be₂ and N₂ have unlike bonding classes, so X=3. BF₃, BrF₃, ICl₂⁻ give Y=3. Ratio1.

Chemistry - CHEMICAL BONDING Question with Solution | TestHub

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