Question

Explain with the help of a suitable example polar covalent bond

Answer 1

Example: Hydrogen chloride (HCl) molecule.

The bonding of hydrogen and chlorine atoms leans more towards Cl atom because Cl is more electronegative in nature than the hydrogen. Thus the shared pair of electrons lies not exactly in between the bond but lean towards chlorine. Due to this Cl atom acquire a slight negative charge, and H atom acquire slight positive charge.

Answer 2

polar  means charge. hence,  polar covalent compound  means the compound formed by two or more atoms of different electronegative.

 for example,  HF  ( it is heteronuclear  molecule ). the shared pair of electrons between the two atoms gets displaced more towards the high electronegative atom, fluorine.