1.

Write a short note on bond length.

Answer»

Bond length :

  • Bond length is defined as the equilibrium distance between the nuclei of two covalently bonded atoms in a molecule.
  • Each atom of the bonded pair contributes to the bond length.
  • Bond length depends upon the size of atoms and multiplicity of bonds. It increases with increase in size of atom and decreases with increase in multiplicity of bond. 
  • e.g. C – C single bond is longer than C ≡ C triple bond.
  • Bond lengths are measured by X-ray and electron diffraction techniques.


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