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Which consequence results when insufficient electron density impacts molecular orbital overlap?

A)Decreased bond dissociation energy
B)Increased vibrational mode lifetime
C)Enhanced electron transport mobility
D)Elevated material refractive index

💡 Explanation

A weak orbital overlap means that the electron density between atoms is reduced, directly diminishing the strength of the covalent bond because attractive forces are lessened. Therefore, a lower bond dissociation energy occurs, rather than increased lifetime in other modes at same temperature.

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