Question

What is Bond Polarity ?Explain with an example.

Answer 1

When a covalent bond is formed electrons are shared between two atoms. Then both atoms achieve a stable electron configuration.

Example:   H2 O:  H - O - H.
                  H -  Cl    or   H - F

   The electron pair in the bond is more attracted towards the more electronegative element ie., Oxygen or Chlorine or Fluorine. Then the electrons stay nearer them than the Hydrogen atom.

   Thus electron gets a little positive charge on it.  O, Cl or F get some negative charge on them.

   So there is a positive negative charge separation along the chemical bond. This is called bond polarity.  Most of the covalent bonds have some bond polarity.  

   If we take  Carbon - Carbon bonds in organic compounds, then there will not be any bond polarity on them.  Similarly for Hydrogen - Hydrogen bond in H2 molecule.

Answer 2

Answer:

carbon has catenation power.which is example of bond polarity