After a Dipole moment in a molecule, positive and negative charges in the molecule are balanced temporarily.
What is a dipole moment?
A dipole moment is a measurement of the separation of two opposite electrical charges. Dipole moments are a vector quantity.
There are two kinds of dipole moments: Permanent electric dipole moments can arise when bonding occurs between elements of differing electronegativities.
Induced (temporary) dipole moments are created when an external electric field distorts the electron cloud of a neutral molecule.
A polar molecule is a molecule where one end has a positive electrical charge and the other end has a negative charge due to the arrangement or geometry of its atoms.
Hence, option D is correct.
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