_ has dipole moment.
Correct answer: A. CO
- A. CO
- B. CO2
- C. Benzene
- D. All of these
Explanation
In the free carbon monoxide molecule, a net negative charge δ- remains at the carbon end and the molecule has a small dipole moment of 0.122 D.
This question appeared on the UHS MDCAT 2008 paper, which you can sit online with every answer explained.
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About Dipole Moment
Dipole moment measures the separation of positive and negative charge in a bond or molecule, with magnitude related to charge and distance, μ = q r. Questions distinguish polar bonds from polar molecules by considering bond direction, molecular geometry and whether individual bond moments cancel through symmetry.
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