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← ScienceWhich outcome occurs when a UV photon interacts to disrupt overlapping electron orbitals?
A)Bond energy is overcome causing dissociation✓
B)Molecular vibration increases reducing temperature
C)Catalyst active site becomes more selective
D)Nuclear spin changes become more coherent
💡 Explanation
Bond dissociation occurs because absorption of a sufficiently energetic photon induces electronic transition. It breaks the **covalent bond**, therefore bonds are overcome and fall apart, rather than inducing vibration/spin because energy overwhelms bond energy.
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