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← ScienceWhich consequence results when molecule orbital overlap is reduced during chemical reaction?
A)Increased activation energy barrier✓
B)Enhanced nucleophilic reaction rate
C)Decreased thermodynamic product stability
D)Improved catalytic reaction selectivity
💡 Explanation
When orbital overlap decreases, transition state stabilization reduces because constructive interference which decreases electronic potential is less efficient raising the energy needed for the transition state, thus increasing activation energy. Therefore an increased activation barrier results, rather than other options which require enhanced orbital interactions and lowered transition energies.
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