From an unequal sharing of electrons between atoms during the bond, dipoles are created because of the formation of the polar covalent bond.
What is a covalent bond?
When two similar or dissimilar atoms form bonds with each other by sharing their valence electron the bond is known as the covalent bond.
The ionic bond is the result of the transfer of the electrons
Ionic bonds are formed between the pair of one electronegative atom and an electropositive atom.
As given in the problem, statement when there is unequal sharing of the elections there is the difference in the electronegative due to the formation of the electron cloud on the excess electron side, due to this separation of the charge a dipole polar covalent bond is formed
Thus we can say that when there is unequal sharing of electrons between atoms there is the formation of dipoles of polar covalent bond.
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