From among the 4 given compounds identify the compounds which possess a net dipole moment. A. cis-1,2-Dichloroethene B. Tetrachloromethane C. o-Dichlorobenzene D. trans 2,3-Dibromobut-2-ene

Step-by-step solution

cis-1,2-Dichloroethene has a non-zero net dipole moment because the two C-Cl bonds are on the same side of the double bond, leading to a resultant dipole moment in the direction of the chlorine atoms. Tetrachloromethane ( CCl₄ ) has a tetrahedral geometry. The four C-Cl bond dipoles cancel each other out due to the high symmetry of the molecule, resulting in a net dipole moment of zero. o-Dichlorobenzene has the two chlorine atoms at adjacent positions on the benzene ring. The bond dipoles do not cancel, resulting