Moderate

Polarity of a molecule is expressed in terms of:

Correct answer: C. Dipole moment

  • A. Bond strength
  • B. Bond length
  • C. Dipole moment
  • D. Shape

Explanation

The polarity of a molecule is expressed in terms of its dipole moment. The dipole moment is a measure of the overall electrical charge separation within a molecule and its orientation. It indicates the degree of polarity in the molecule. A molecule is considered polar if it has a net dipole moment, meaning that there is an uneven distribution of electrons that results in a partial positive charge on one end of the molecule and a partial negative charge on the other end. This creates a separation of charge, or a "dipole," within the molecule.

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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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