CHEM BRAIN

  

Dipole Dipole forces [Polar + Polar]

  

Dipole induce Dipole [Polar + Non-Polar]

  

Instantaneous Dipole & Induce Dipole/ LF [Non-polar + Non-polar]

  

\( Ion \ dipole > Hydrogen \  bonding > Dipole \  dipole \  forces > Dipole \  induce \ dipole > London \ forces \) Order of strength while having same molecular weights 

  

Molecular polarity is calculated by Dipole moment( \( \mu \)). If central atom doesn't have any lone pair and surrounded by same type of atoms then this molecule is considered as non-polar molecule. 

    Bond Polarity is calculated by difference in electronegativity (\( \Delta E.N \) )      \( \Delta E.N > 0.5 \rightarrow Polar \)     \( \Delta E.N < 0.5 \rightarrow Non-Polar \)