Question

Dipole - dipole forces act between the moleucles possessing permanent dipole. The ends of dipoles posses 'partial charges' The particle charge is:

• A. More than a unit electronic charge
• B. Equal to a unit electronic charge
• C. Less than a unit electronic charge
• D. Double the unit electronic charge

Answer 1

The correct option is C Less than a unit electronic charge

Dipole-dipole forces act between the molecules possessing permanent dipole and ends of dipoles possess 'partial charges'. Partial charges present on the ends of a dipole are always less than a unit electronic charge. It arises due to the partial displacement of electrons, when a electronegative atom is directly connected with any less electronegative atom. It is represented as ${\delta }^{+}$ or ${\delta }^{-}$