Question

Part a choose the molecule or compound that exhibits dipole-dipole forces as its strongest intermolecular force. Choose the molecule or compound that exhibits dipole-dipole forces as its strongest intermolecular force. N2 h2 cbr4 so2 bcl3

Answer 1

Answer :  $SO_{2}$ is the molecule that exhibit dipole-dipole forces as its strongest intermolecular force.

Explanation : The shape or geometry of given molecules of $N_{2}$, $H_{2}$, $CBr_{4}$, $BCl_{3}$ and $SO_{2}$ are linear, linear, tetrahedral, trigonal planar and angular respectively.

The given molecules $N_{2}$, $H_{2}$, $CBr_{4}$, $BCl_{3}$ are symmetrical molecules. These symmetric molecules cannot exists as dipole even they contain polar bonds. Thus, these molecules will not exhibit dipole-dipole forces.

$SO_{2}$ molecule has polar bonds and unsymmetrical bonds as shown in attached image. This molecule cannot exhibit H-bonding. It exhibit only dipole-dipole forces.

Therefore, $SO_{2}$ molecule exhibit dipole-dipole forces as strongest intermolecular force.