Which one is non-polar but contains polar bonds:
Correct answer: D. CO2
- A. HCl
- B. HF
- C. H2O
- D. CO2
Explanation
CO2 is the correct answer because even though it contains polar bonds between C and O, its linear molecular geometry results in the dipoles cancelling out, making the molecule non-polar overall. HCl, HF, and H2O are polar molecules with polar bonds due to the electronegativity differences between the atoms.
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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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