객관식
Which of the following combinations of hybridization and molecular geometry is possible?
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12. Molecular Shapes & Valence Bond Theory
Hybridization
객관식
Which of the following hybridization schemes allows the formation of at least one pi (π) bond?
A
sp3d
B
sp3d2
C
sp3
D
sp
검증된 단계별 안내1
Recall that pi (π) bonds are formed by the side-to-side overlap of unhybridized p orbitals. Therefore, for a pi bond to form, the atom must have at least one unhybridized p orbital available.
Analyze the hybridization schemes: sp3, sp3d, and sp3d2. Each hybridization involves mixing s, p, and sometimes d orbitals to form hybrid orbitals used in sigma (σ) bonding.
In sp3 hybridization, one s and three p orbitals mix, using all three p orbitals for hybridization, leaving no unhybridized p orbitals available for pi bonding.
In sp3d and sp3d2 hybridizations, the involvement of d orbitals along with s and p orbitals means that all p orbitals are also hybridized, leaving no unhybridized p orbitals for pi bonds.
In contrast, sp hybridization mixes one s and one p orbital, leaving two p orbitals unhybridized. These unhybridized p orbitals can overlap side-to-side to form pi bonds, allowing the formation of at least one pi bond.
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