Interpretation:
The polar covalent bond needs to be described.
Concept introduction:
The sharing of electrons between bonded atoms forms the covalent bond. The electro negativity of bonded atoms determines the nature of
Complete transfer of electrons forms ionic bond therefore there are complete positive and negative charge on bonded ions.

Answer to Problem 69SSC
A polar covalent bond can be defined as the covalent bond with partial negative and partial positive charges on bonded atoms.
Explanation of Solution
The sharing of electrons between bonded atoms forms the covalent bond.
As the difference of electro negativity of bonded atoms increases, the partial charge on bonded atoms also increases.
The bonded atoms with a higher difference of electro negativity induce polar nature in a covalent bond. Such covalent bonds are called polar covalent bonds. A polar covalent bond is a covalent bond with partial negative and partial positive charges on bonded atoms.
For example, O-H bond is a polar covalent bond because O is more electronegative than H atom.
A polar covalent bond has difference in the electro negativity of the bonded atoms.
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