Answer Posted / balaji

Electronegativities, Bond Polarities and Dipole Moments -The
electrons on the most chemical bonds are unequally shared.
The reason of the inequality is that the atoms forming bond
have different ability to attract electrons.
Electronegativity is a measure of the relative attraction
that an atom has for the shared electrons in a bond. Bond
Polarity is a measure of inequality in the sharing of
bonding electrons. The Bond Polarity is a vector, pointing
from the atom with less electronegativity to the atom with
larger one. The separation of positive and negative charges
causes an electric dipole moment. If the vector sum of Bond
Polarities of a molecule is not zero, the molecule is said
having Dipole Moment.

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