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← ScienceFor highly strained cyclic hydrocarbons, which mechanism impedes overlap?
A)Increased energy of antibonding orbitals
B)Suboptimal p-orbital alignment✓
C)Enhanced sigma bond electron shielding
D)Reduced dispersion force contributions
💡 Explanation
Suboptimal p-orbital alignment inhibits pi bond formation because the orbitals are forced into non-parallel arrangements. This weakens the bond and increases molecular strain; therefore, limited orbital overlap is created rather than a strong pi bond due to ideal geometry.
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