Which of the following molecules has no net dipole moment?
Correct answer: C. CCl4
- A. HCI
- B. H2O
- C. CCl4
- D. CH3Cl
Explanation
CCl4 has polar bond even but dipole moment is zero because the shape of the molecule (tetrachloromethane) is tetrahedral and this makes it very symmetrical and the 4 polar bonds cancel each other out to produce zero dipole moment.
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Chemical bonding explains molecular shape through VSEPR theory and distinguishes sigma bonds from pi bonds. Questions involve hybridization, bond angles, dipole moment and bond energy, including how electron-pair repulsion determines geometry and how bond polarity differs from the overall polarity of a molecule.
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