Answer
Bond moment is the individual dipole moment in a molecule. Individual bond moments in a molecule add up to give overall dipole moment of the molecule.
The bond moment is a vector quantity, which means it has both magnitude and direction. The measured dipole moment is equal to the vector sum of the bond moments. If the bond moments with equal magnitude point in opposite directions, then they cancel out and the sum or resultant dipole moment would be zero. Therefore, such molecules will have dipole moments and yet be non-polar.
Work Step by Step
Bond moment is the individual dipole moment in a molecule. Individual bond moments in a molecule add up to give overall dipole moment of the molecule.
The bond moment is a vector quantity, which means it has both magnitude and direction. The measured dipole moment is equal to the vector sum of the bond moments. If the bond moments with equal magnitude point in opposite directions, then they cancel out and the sum or resultant dipole moment would be zero. Therefore, such molecules will have dipole moments and yet be non-polar.
