For a molecule to absorb IR, why must the molecule's vibrations cause fluctuations in the dipole moment of the molecule? Options: A . &nbspBecause a change in dipole moment lowers the energy required for electronic transitions B . &nbspBecause for absorption to occur, the radiation must interact with the electric field caused by changing dipole moment C . &nbspBecause fluctuations in the dipole moment allow the molecule to deform by bending and stretching D . &nbspAll of the above

For a molecule to absorb IR, why must the molecule's vibrations cause f

Question

For a molecule to absorb IR, why must the molecule's vibrations cause fluctuations in the dipole moment of the molecule?

Options:

A . Because a change in dipole moment lowers the energy required for electronic transitions

B . Because for absorption to occur, the radiation must interact with the electric field caused by changing dipole moment

C . Because fluctuations in the dipole moment allow the molecule to deform by bending and stretching

D . All of the above

Answer: Option B

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